Factors, number properties

Source : grockit. If k is an integer > 1, does k=2? (1) if a and b are any 2 positive factors of k, and a <> b (not equal to), then a-b is odd. (2) k has only 2 positive factors I thought C is the right answer but it is A Don't agree with the explanation given. Can anyone help explain this better. F...

I believe "policies,which" is correct in option A if the "there" was changed "in Liberia", is that right ?

If not "which" what other pronoun would you use here?

Is this still valid? If not, why is this still a sticky ?

I think you mean this
http://gmatclub.com/forum/gmat-score-ca ... 9d#p629199

imo C

I think may and might can be used interchangeably

But what's wrong in B is, that "under other procedures" (beause of under) seems incorrect, and parallelism is better in C.

I dont think this question is testing may vs might.
Good question though.

imo B I think its poorly framed. Even the non-underlined part of the sentence can be corrected ;) "yet another blow to anthropocentricity came with the discovery of dark matter, not only is man not the centre of the universe physically ( as Copernicus showed) or biologically (as Darwin showed);...

Also I believe B is parallel, while C is not.

that it hampers the ability of some children "to distinguish " , "and,..., to make"

Words

Many Lithuanian words preserve important features of Proto-indoeuropean, the language from which it is descended, and scholars compare it to the corresponding word in other indoeuropean languages in order to reconstruct the original Proto-indoeuropean form. a. it is descended, and scholars compare i...