【单选题】
Which of the following commands are used to create folders in a command prompt?()
A、CD
B、RD
C、MD
D、SD
A、CD
B、RD
C、MD
D、SD
A、cat /proc/usr/lparchk B、cat /proc/ppc64/lparcfg C、/var/adm/tools/res_list D、/var/adm/tools/lparalloc