This question from Powerscore

Malaria ravages more people than any disease, yet there are only a dozen laboratories in the world which are devoted to its study.
(A) than any disease, yet there are only a dozen laboratories in the world which
(B) than any disease, but there are only a dozen laboratories in the world which
(C) than does any disease, but only a dozen laboratories in the world
(D) as any other disease, but only a dozen laboratories in the world
(E) than any other disease, yet only a dozen laboratories in the world

What is the difference between C & E
OA is E

Any taker for this question

Malaria ravages more people than does any disease ... This can be interpreted as "Malaria ravages more people than Malaria ravages any disease" ... Thus people are compared to disease .. I think that is the reason Answer C is incorrect.

I am not still convinced. Any instructor to help me with this one

any disease may include malaria itself. so we have to exclude malaria. therefor use of 'other' is necessary here.
D is out due to wrong idiom more than as


C grammatically correct but other is missing
A and B out similar reasons. also use of which is not correct

In C, the word "does" refers back to the verb "ravages," so what that option would be saying is:
"Malaria ravages more people than (it) ravages any disease"
That doesn't make sense - the meaning should be that malaria ravages more people than any other disease ravages people. It doesn't make sense to say that malaria ravages other diseases.

That logic allows us to get rid of A and B in addition to C, by the way. (A and B are basically saying the same thing.)