I don't understand

新东方老书section 7

13. In astronomy the term “red shift” denotes the extent to which light from a distant galaxy has been shifted toward the red, or long-wave, end of the light spectrum by the rapid motion of the galaxy away from the Earth.

(A) to which light from a distant galaxy has been shifted

(B) to which light from a distant galaxy has shifted

(C) that light from a distant galaxy has been shifted

(D) of light from a distant galaxy shifting

(E) of the shift of light from a distant galaxy

The key is D, but why E is not correct. Dut to the extent in this sentence refers to the shift of light, not the light.

Thanks for help!

carolhide,我不是写了是新东方老书section 7了吗？除此之外，我真的不知道什么题号呀。

不好意思呀各位，答案确实为A,但是为什么E不对呀

我的意思是在标题中。

这题是OG里的题，LZ可以去查下OG解释。