再求助蓝皮书的一题：）

Zeldaw

In 1929, relatively small declines in the market ruined many
speculators having bought on margin; they had to sell, and their
selling pushed other investors to the brink.

(A)speculators having bought on margin; they had to sell, and
(B)speculators who had bought on margin; having had to sell, and
(C)speculators who had bought on margin; they had to sell, and
(D)speculators, those who had bought on margin; these speculators had
to sell, and
(E)speculators, who, having bought on margin and having to sell

答案C，我选的D，觉得C的they有歧义，请NN指点

stephenep

从文中可以判断出they 不可能指decline，当然如果Ｃ去掉those选Ｃ比较好

请大家指点

floraxycn

我觉得C没问题，从逻辑上判断只能指speculators