单选题 ______ the stockbrokers said the market was healthy, they refused to invest more money.

A、 (A) Because
B、 (B) Although
C、 (C) In addition
D、 (D) So

【正确答案】 B

【答案解析】Although is the correct subordinate conjunction showing unexpected result. Choice (A) shows expected result. Choice (C) continues the same idea. Choice (D) shows expected result.