When I got his message ,I called back,but there was no_____.

问题描述:

When I got his message ,I called back,but there was no_____.
A.answer B.ring C.voice D.sound

当我收到他的消息时,我回拨了,但是没人接.
接电话就是 answer the phone
没人接就是 no answer
其他都不对.