What is the result of running the crypto isakmp key ciscXXXXXXXX address 172.16.0.0 command?
A. authenticates the IKEv2 peers in the 172.16.0.0/16 range by using the key ciscXXXXXXXX
B. authenticates the IP address of the 172.16.0.0/32 peer by using the key ciscXXXXXXXX
C. authenticates the IKEv1 peers in the 172.16.0.0/16 range by using the key ciscXXXXXXXX
D. secures all the certificates in the IKE exchange by using the key ciscXXXXXXXX