单选题In which directory are the basic Linux commands such as gzip， gunzip and zcat installed？（）A /opt/freeware/binB /usr/bin/freewareC /var/freeware/binD /usr/sbin/freeware
题目
单选题
In which directory are the basic Linux commands such as gzip， gunzip and zcat installed？（）
A
/opt/freeware/bin
B
/usr/bin/freeware
C
/var/freeware/bin
D
/usr/sbin/freeware