Regarding security policy configuration commands, which of the following is correct?

Regarding security policy configuration commands, which of the following is correct?
A . It is forbidden to access the ICMP packets from the trust zone to the untrust zone and the destination address is the 10.1.10.10 host.
B . Prohibit access from the trust zone to all host ICMP messages in the untrust zone with the destination address 10.1.0.0/16 network segment
C . Forbid all host ICMP messages from the trust zone to access the untrust zone and whose source address is the 10.1.0.0/16 network segment.
D . Prohibit access from the trust zone to all host ICMP messages from the untrust zone with the source address 10.2.10.10.

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Answer: C