worthwhile

[GmatKiss]

It may someday be worthwhile to try to recover uranium from seawater, but at present this process is prohibitively expensive.

(A) It may someday be worthwhile to try to recover uranium from seawater
(B) Someday, it may be worthwhile to try and recover uranium from seawater
(C) Trying to recover uranium out of seawater may someday be worthwhile
(D) To try for the recovery of uranium out of seawater may someday be worthwhile
(E) Recovering uranium from seawater may be worthwhile to try to do someday

WHY IS B WRONG?

[gmatblood]

IMO : B

[avik.ch]

It may someday be worthwhile to try to recover uranium from seawater, but at present this process is prohibitively expensive.

(A) It may someday be worthwhile to try to recover uranium from seawater
(B) Someday, it may be worthwhile to try and recover uranium from seawater
(C) Trying to recover uranium out of seawater may someday be worthwhile
(D) To try for the recovery of uranium out of seawater may someday be worthwhile
(E) Recovering uranium from seawater may be worthwhile to try to do someday

WHY IS B WRONG?

"to try and recover" is not the correct idiom,
The correct idiom is :try to + verb

I hope this helps.

[ranjeet75]

why C is wrong? Whether "trying to recover" sort of construction is used for future events.

I am confused in A & C. Though A seems right but I could not get why C is wrong.

[aspirant2011]

Yup avik is right in his explanation.......

[sam2304]

IMO A.

The structure and meaning seems very clear in A with a possibility, period, an effort to something followed by a contrast, period, and why the effort is not preferred.