885-补充-037以前没问过的

37.   Seeming to be the only organization fighting for the rights of poor people in the South, Hosea Hudson, a laborer in Alabama, joined the Communist party in 1931.

(A) Seeming to be

(B) As

(C) In that they seemed

(D) Since it seemed（E）

(E) Because it seemed to be

这里的E答案中的it不为什么不是指代laborer？虽然我知道逻辑不清，但是原因状语从句，如果主句和从句的主句不一样的话，从句的主语是不能用it指代的吧？当时我也被这题给弄晕了~~

请大牛们指教阿~~谢谢~~