Some of your internal users are complaining that they can’t get to the mail server at 10.6.7.22.
Looking at the firewall rulebase in the exhibit, what is the problem?
A.
You don’t have a rule allowing traffic to the host at 10.6.7.22.
B.
Rule 20 blocks traffic from an internal subnet to hosts on 10.6.7.0/24.
C.
No traffic has matched rule 30.
D.
You don’t have a rule allowing mail traffic to subnet 10.6.7.0/24.