The delegates of the two countries started the disarmament talks

The delegates of the two countries started the disarmament talks after an exchange of___________.
A、courtesy
B、honor
C、pleasantry
D、respect
【正确答案】：C
【题目解析】：原句的意思是“两国代表在相互寒暄之后开始了裁军谈判。” 因此我们选择C. pleasantry（客气话、客套）。