After dinner the chairman made a short ______ to the guests.

After dinner the chairman made a short ______ to the guests.
A、pronunciation
B、conversation
C、speech
D、delivery
【正确答案】：C
【题目解析】：本题考查名词词义辨析。A.pronunciation：发音；B.conversation：对话，谈话；C.speech：演讲；D.delivery：递送，发表，可用于deliver a speech。根据题意，"晚餐后主席对客人发表了简短的演讲。"C最合适。答案为C。