In option "D" of same Question "the Sloth" isn't the modifier "found in Puerto Rico in 1991" ambigious....

What was found : The Sloth or the The Fossils of the arm of Sloth...

Kindly explain the

Thanks in advance...

first --
OFFICIALLY CORRECT ANSWERS ARE CORRECT!
do not question officially correct answers!
far too many students on this forum make the mistake of questioning the correct answers; please note that doing so is a complete waste of your time and effort. i.e., exactly 0% of the time that you spend posting "isn't this official answer wrong?" is productive, and exactly 100% of that time is wasted.

"is this correct?" is NEVER a productive question to ask about one of GMAC's correct answers -- the answer is always yes.
"is this wrong?" / "is this X type of error?" is NEVER a productive question to ask about one of GMAC's correct answers -- the answer is always no.

instead, the questions you should be asking about correct official answers, if you don't understand them, are:
"why is this correct?"
"how does this work?"
"what understanding am i lacking that i need to understand this choice?"

this is a small, but hugely significant, change to your way of thinking -- you will suddenly find it much easier to understand the format, style, and conventions of the official problems if you dispose of the idea that they might be wrong.

--

like many other modifiers, this one requires you to use common sense to identify its referent.
grammatically, yes, it could technically stand for either of these; however, since only one of them makes any sense, it is not ambiguous.

Hi :),

Can anyone explaining why "making the sloth" is correct? I don't understand what kind of sentence structure and verb tense are being used here.

Thanks in advance.

i could, but that would violate one of the most fundamental rules of sentence correction: do not look for a correct answer in an SC problem. your job is to find four wrong answers, at which point whatever is left is the correct answer. if you see something and you don't know why it's correct or whether it's correct, LEAVE IT ALONE (i.e. don't eliminate that choice). focus your efforts on finding errors. very often the best reason something is "correct" on the GMAT is because the GMAT says so..

_________________
Tim Sanders
Manhattan GMAT Instructor