应该选quickly 还是 immediately

问题描述:

应该选quickly 还是 immediately
She began to cry ( at once ) when she heard the bad news.
A soon
B quickly
C immediately
D after
两个都可以解立即 马上
应该怎麼选

c
B 是动作很快,就像快进一样的感觉
C 是时间间隔很短.立即,马上.