The question came up at the meeting we had enough money for our research.A. that B. which

问题补充：

The question came up at the meeting we had enough money for our research.

A. that

B. which

C. whether

D. that if

答案：

A. that

B. which

(答案→)C. whether

D. that if

解析：考察连词。根据句子结构可知，该句为同为语从句，作question的同位语，从句中不缺少成分，但是缺少是否的意思。

句意为，会议上，我们是否有足够的研究经费这个问题出现了。