What is the reason for this?

Refer to the following access list.
access-list 100 permit ip any any log
After applying the access list on a Cisco router, the network engineer notices that the router CPU utilization has risen to 99 percent. What is the reason for this?
A. A packet that matches access-list with the “log” keyword is Cisco Express Forwarding switched.
B. A packet that matches access-list with the “log” keyword is fast switched.
C. A packet that matches access-list with the “log” keyword is process switched.
D. A large amount of IP traffic is being permitted on the router.