skeptical of global warming extent

[poonamchiK]

Those skeptical of the extent of global warming argue that short-term temperature data are an inadequate means of predicting long-term trends and point out that the scientific community remains divided on whether significant warming will occur and what impact will it have if it does.

(A) on whether significant warming will occur and what impact will it have if it does
(B) on whether warming that occurs will be significant and the impact it would have
(C) as to whether significant warming will occur or the impact it would have if it did
(D) over whether there will be significant warming or the impact it will have
(E) over whether significant warming will occur and what impact it would have

I was b/w A and E and it was pretty much a close call.
Can some1 explain to me why A is wrong?
I presume tht 'would' in E makes all the diff since the entire situation starts wit skeptical.

OA : E.

[RonPurewal]

poonamchiK, please start searching the forum for existing threads on these problems -- lately you've been starting a new thread for every single problem that you post.
by this point practically all of the CR and SC problems on gmat prep have already been posted on this forum, so you should be able to find existing threads for almost every problem you're looking for.

for this one, see here:

those-skeptical-of-the-extent-of-global-warming-argue-that-s-t1938.html

[poonamchiK]

Dear Ron,
I did attempt searching, but i'v posted since I could'nt find this.

I am able to find many of my problems on the internet already. And i do sometimes dig out older post!
But thx a ton for searching this for me! :-)

Best
P

[jnelson0612]

Thanks Ron. Good reminder for all!