We saw a new play at the theatre, _________ we had supper at a r

We saw a new play at the theatre, _________ we had supper at a restaurant.
A、after which
B、which after
C、then which
D、and that after
【正确答案】：A
【题目解析】：which在这里指代”我们在影院看话剧“这件事，根据句意可知这里是说在看完话剧之后去吃了晚饭，故选A。