求教一道白勇语法题，section1－11

l1．The growth of the railroads led to the abolition of local times, which was determined by when the sun reached the observer's meridian and differing from city to city, and to the establishment of regional times.
（A）which was determined by when the sun reached the observer's meridian and differing
（B）which was determined by when the sun reached the observer's meridian and which differed
（C）which were determined by when the sun reached the observer's meridian and differing
（D）determined by when the sun reached the observer's meridian and differed
（E）determined by when the sun reached the observer's meridian and differing

不知道D和E 有和区别，求教。

答案是E。

E选项逻辑上正确 指出LOCAL TIME每个城市不同 D选项是说太阳每个城市不同 逻辑错误