单选题 There was no news from Kissinger while he was in Beijing, chiefly because ______ .

A、 his trip had to be kept secret
B、 President Yahya did not go with Kissinger
C、 communication between Beijing and Islamabad was difficult
D、 the negotiation(谈判) was not successful

【正确答案】 A

【答案解析】细节题。见第三段第一句：“Because of the need for complete secrecy and the lack of any direct communication facilities between Beijing and Washington，I knew that we would have no word from Kissinger while he was in China,”由此可知答案A正确。