Refer to the exhibit. A network engineer configures a new GRE tunnel and enters the show run command. What does the output verify?
A. The tunnel keepalive is configured incorrectly because they must match on both sites.
B. The tunnel destination will be known via the tunnel interface.
C. The tunnel will be established and work as expected.
D. The default MTU of the tunnel interface is 1500 bytes.
B is correct.