求教:名词+that+名词+hope will的用法

the near earth asteroid rendezvous(NEAR) spacecraft will orbit the asteriod Eros for a year, slowly moving closer to the surface of the object to make more precise measurements that scientists hope will enable them to understand how the solar system 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 are hoping to enable them

C. for making ever more precise measurements, and scientists hope that they will be able to

D. with the purpose of making more precise measurements than ever, and which scientiss hope will enable them to

E. in order to make more precise measurements than it ever did, and scientists are hoping they will be able to

我选C.

我的问题是: A中 measurements that scientists hope will enable them to. 的用法that引导定从修饰measurements. 但that同时要做hope的宾语和will的主语.这种用法对吗.我觉得hope后面的THAT不能省略.请NN指教.

但如果不对,ETS曾有"...the instructions that the company hopes will help merchants confirm a check's authenticity."

求教.