关于晚期妊娠羊水代谢的主要途径，哪项是正确的

A．胎肺吸收大量羊水

B．胎儿脐带对水分的吸收运输

C．胎儿尿液排出和吞咽羊水

D．母体血清经胎膜进入羊膜腔的透析液

E．体液经胎儿皮肤渗入羊膜腔

How did it ________ that everyone knows my decision? I had been keeping the information to myself.

A．come across

B．come on

C．come about

D．come out