【单选题】
Which of the following "no options" controls the maximum value of mbufs?()
A、mtu
B、sb_max
C、thewall
D、tcp_sendspace
A、mtu
B、sb_max
C、thewall
D、tcp_sendspace
A、cat /proc/usr/lparchk B、cat /proc/ppc64/lparcfg C、/var/adm/tools/res_list D、/var/adm/tools/lparalloc