379 In good years, the patchwork of green fields that surround the San Joaquin Valley town bustles with farm workers, many of them in the area just for the season.

(A) surround the San Joaquin Valley town bustles with farm workers, many of them

(B) surrounds the San Joaquin Valley town bustles with farm workers, many of whom are

(C) surround the San Joaquin Valley town bustles with farm workers, many of who are

(D) surround the San Joaquin Valley town bustle with farm workers, many of which（A）

(E) surrounds the San Joaquin Valley town bustles with farm workers, many are

本来这道题是做对了的，但是今天仔细想了一想，觉得有些不大对头：

the patchwork of green fields that surround the San Joaquin Valley town bustles with farm workers

因为在我自己总结的过程中认为，限定性定从修饰的是其前面的中心词，即前方结构的

词，这里如果the patchwork of green fields 中，the patchwork是主词，则that应该修饰它，

如果green fields是主词的话，后边的bustle也应该修饰fields而取复数形式。

我是单纯从语法上考虑。真的是越想越迷糊，走火入魔了。

哪位帮我分析一下我的想法中的谬误之处。不胜感谢！！！

(A) surround the San Joaquin Valley town bustles with farm workers, many of them "many of them" 就不是限制性定语从句了，而变成并列句了

而（D）中的“many of whom”则是限制性定语从句