【we couldn't eat in the restaurant because】

问题补充：

we couldn eat in the restaurant because

答案：

你提供的选项都不合适,应该是：

We couldn eat in the restraurant because 【none】 of us had 【any money】 on us

A 不对,因为这是部分否定；B 不对,any不作否定句的主语.

======以下答案可供参考======

供参考答案1:

A供参考答案2:

A