An Administrator Is Attempting to Block SSH Connections to 192

An administrator is attempting to block SSH connections to 192.168.10.24 using the Linux firewall. After implementing a rule, a connection refused error is displayed when attempting to SSH to 192.168.10.24. Which of the following rules was MOST likely implemented?

A) iptables -A -p tcp -d 192.168.10.24 -dropt 22 -j REJECT
B) iptables -A -p tcp -d 192.168.10.24 -dropt 22 -j DROP
C) iptables -A -p tcp -d 192.168.10.24 -dropt 22 -j FORWARD
D) iptables -A -p tcp -d 192.168.10.24 -dropt 22 -j REFUSE