What does an ICMP (Code 13) message normally indicates?

A.
It indicates that the destination host is unreachable

B.
It indicates to the host that the datagram which triggered the source quench message will need to be re-sent

C.
It indicates that the packet has been administratively dropped in transit

D.
It is a request to the host to cut back the rate at which it is sending traffic to the Internet destination

Explanation:
CODE 13 and type 3 is destination unreachable due to communication administratively prohibited by filtering hence maybe they meant "code 13", therefore would be C).

Note:A – Type 3B – Type 4C – Type 3 Code 13D – Typ4 4