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Simultaneous Multithreading (SMT) is enabled in a POWER6 VIO client running AIX 6.1.
 Which command would be used to disable it after the next operating system reboot is performed?()

A. schedo -o smt=0 -p
B. smtctl -m off -w boot
C. chdev -l sys0 -a smt=off
D. echo 0 > /proc/sys/smt_enable

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