问题

I hear Huang Gang made an English speech at the graduation ceremony (典礼) yesterday.—, and .
A:So he did, so did I
B:So did he, so I did
C:So he was, so was I
D:So was he, so I was
B:So did he, so I did
C:So he was, so was I
D:So was he, so I was
正确答案是: