What file would you view to determine the speed of your processor(s)?

You are concerned that the processor for your firewall running NGX R71 Secure Platform may be overloaded.

What file would you view to determine the speed of your processor(s)?
A . cat /etc/cpuinfo
B . cat /proc/cpuinfo
C . cat /var/opt/CPsuite-R71/fw1/conf/cpuinfo
D . cat /etc/sysconfig/cpuinfo

Answer: B