请教大全762题！我认为正确答案有问题，大家怎么看？

762.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）

(E) determined by when the sun reached the observer’s meridian and differing

我认为正确答案应该是C. 这里which定语从句就是修饰限定local times, 这句话的意思是 当地时间由太阳到达观察着的子午点决定并且每个城市都不同。

而正确答案E是不是更倾向于说 铁路的增加导致取消local times 这一事件 是由by when the sun reached the observer’s meridian and differing 来决定

如果E答案也修饰限定local times，那么我认为which定语从句不是更比分词准确，不产生歧义吗？

正解是什么呢？谁帮我分析看看：

汗，我看错了，如果选C的话那么后面就不能用differing了，因为作为定语从句有which做主语了，应该用differed

楼上说的有道理！消除了我的误会，谢谢啦！