Hi,
Can someone please help with this:

When an active tooth in the shark’s jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.

A. When an active tooth in the shark’s jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.
B. Whenever an active tooth is lost or worn down, many spare teeth lie in seemingly limitless reserve in the shark’s jaws, which are each ready to slide into the appropriate position.
C. Many spare teeth lie in seemingly limitless reserve in the shark’s jaws, each one of which are ready to slide into the appropriate position when an active tooth is lost or worn down.
D. The many spare teeth lying in seemingly limitless reserve in the shark’s jaws, each one of which is ready to slide into the appropriate position whenever an active tooth is lost or worn down.
E. In the shark’s jaws, many spare teeth lie in seemingly limitless reserve, each one ready to slide into the appropriate position whenever an active tooth is lost or worn down.

E should be the answer

VJ, please clarify what trouble you are having with the question. Which choices are you clear on and which choices are you confused about? Thanks.

_________________
Emily Sledge
Instructor
ManhattanGMAT

When an active tooth in the shark’s jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.

A. When an active tooth in the shark’s jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.
B. Whenever an active tooth is lost or worn down, many spare teeth lie in seemingly limitless reserve in the shark’s jaws, which are each ready to slide into the appropriate position.
C. Many spare teeth lie in seemingly limitless reserve in the shark’s jaws, each one of which are ready to slide into the appropriate position when an active tooth is lost or worn down.
D. The many spare teeth lying in seemingly limitless reserve in the shark’s jaws, each one of which is ready to slide into the appropriate position whenever an active tooth is lost or worn down.
E. In the shark’s jaws, many spare teeth lie in seemingly limitless reserve, each one ready to slide into the appropriate position whenever an active tooth is lost or worn

O.A -A for this question
why option A is correct and E incorrect ?
"each of which "will refer to "reserves" when it should refer to "teeth".
To me even E doesn't look perfect but better than other options

IMO E


'When' denotes the at the same time; and use of when in this incorrectly signifies that many spare teeth lie in seemingly limitless reserve at that same time an active tooth in the shark’s jaws is lost or worn down. Infact, spare teeth are always there.
Also, each of which should follow by singular verb 'is' not 'are'.


Use of 'whenever' is incorrect because of same reason as in A. Also, 'which' is incorrectly modifying shark's jaws.


Correct use of 'when'
but still 'each one of which are ready' should be 'each one of which is ready'


'The many spare teeth lying in' - use of present continuous verb 'lying' is incorrect


Correct.

this should be (e).

the other four choices all misuse "which" (or "each of which", whose modifier properties are the same as those of "which").
in (a), "each of which" doesn't refer to anything at all (it seems to refer to "reserve", but that doesn't make any sense)
in (b), "which" refers to the shark's jaws (this doesn't make sense)
in (c) and (d), "each one of which" refers to the shark's jaws (this doesn't make sense)

also:
(a) and (b) have the wrong meaning: the placement of the "when"/"whenever" clause suggests that the teeth are only there when another tooth is lost or worn down.
(c) has subject-verb disagreement ("each one of which" is singular, but "are" is plural).
(d) is a sentence fragment.

no way. this must be (e).
where did you get this supposedly official answer?

Probably from beat the gmat or urch.
Better if I not rely on these sources for OA.
Thanks Ron

yes.

technically, we don't even allow problems from other blogs. you MUST be able to cite the PRIMARY SOURCE of the problem.

thanks.