What happens when you issue the ping 172.19.102.2 count 5 command?（）

• A、ICMP echo requests are sent to 172.19.102.2 in five-millisecond intervals.
• B、ICMP echo requests are sent to 172.19.102.2 until five packets are dropped.
• C、ICMP echo requests are sent to 172.19.102.2 five times.
• D、ICMP echo requests are sent continuously to 172.19.102.2 for five seconds.