prep 1-60 再论双重所有格

60.
Mideast immigrants' rates of entrepreneurship exceed virtually every other immigrant group in the increasingly diverse United States economy.

(A) Mideast immigrants' rates of entrepreneurship exceed
(B) Mideast immigrants are exhibiting rates of entrepreneurship exceeding
(C) Immigrants from the Mideast exhibit rates of entrepreneurship exceeding those of
(D) The rates of entrepreneurship in immigrants from the Mideast exceed
(E) The rates of Mideast immigrants' entrepreneurship exceeds those of

答案C没有问题
但是解释中说E的The rates of Mideast immigrants' enterpreneurship我有点疑问这个短语要表达的意思应该是：中东移民的企业家精神比率也就是说这个词组的核心成分是the rates of enterpreneurship Mideast immigrants'只是用来修饰后面的enterpreneurship的，所以应该不存在双重所有格的问题啊
就如之前有一个关于此题的讨论帖中说到： A of B's 是罗嗦，因为完全可以写成 B's A, 所以这样的双重所有格不行。
A of B's C 不是罗嗦, 如果改成B's C's A 反而罗嗦。所以A of B's C正确。

我觉得这道题是属于后面这种情况
请教大家这题错了N遍了，一定得搞清楚了
多谢啦~