infinitive

[sarahfzq]

I think the answer should be A
Not sure if i am right on this.

can anyone help?

The Near Earth Asteroid Rendezvous (NEAR) spacecraft will orbit the asteroid Erosfor a year, slowly moving closer to the surface of the object to make ever more precisemeasurements that scientists hope will enable them to understand how the solarsystem formed some four billion years ago.
A. to make ever more precise measurements that scientists hope will enable them to
B. to make ever more and more precise measurements, which scientists arehoping to enable them
C. for making ever more precise measurements, and scientists hope that they willbe able to
D. with the purpose of making more precise measurements than ever, and whichscientists hope will enable them to
E. in order to make more precise measurements than it ever did, and scientists arehoping they will be able to

[RonPurewal]

* This is not a MGMAT problem. Please post it in the correct folder (general verbal or GMAT Prep, depending on which is the source).

* Before posting, please search the forum to see whether there are existing threads on this problem.
If there are, please read those threads, as your question(s) may be answered in them.
If not, please post your questions in the existing threads. Don't start a new thread.

* If you post, please give specifics of your thought process so far.
What do you already understand?
What, specifically, is/are the part(s) with which you have issues?

Thanks.