Measures must be taken to prevent pollution ________ happily. [ ]

A. from we live  

B. for us to live

C. us living  

D. from our living

要检查WAS启动是否正常，应该检查以下哪个日志文件（）。

A.~/bin/local

B.~/logs/catalinA.log

C.~running.txt

D.以上都不是