"The clock was ____ eleven as I went upstairs to bed"B.striking C.ringing 选哪一个,解释一下

问题描述:

"The clock was ____ eleven as I went upstairs to bed"
B.striking C.ringing 选哪一个,解释一下

B.
clock is striking
alarm is ringing

B.striking
当我上楼睡觉的时候钟敲响了十一声.