Questions about ICMP

The following statement is correct.

A, B and D

because

The Acl number is 3000 // The access control list (ACL) number is 3000.

Rule 0 rejects icmp type response//Rejects PING in Internet control message protocol.

Interface GigabitEthernet0/0 // Configure the GE0/0 interface.

Ipaddress192.168.0.1255.255.0//Configure the address and mask.

Firewall packets filter 3000 inbound//Apply ACL in the entrance direction of GE0/0 port.

After the ACL takes effect, A and B in the question are easy to judge as correct;

D is correct because the port to HostB is unrestricted.

but

C is judged as an error because the return packet that HostB ping HostA is also prohibited.