What Is the cause of this webserver access Issue?

Users cannot access a webserver and after the traffic is captured, the capture too* shows an ICMP packet that reports "communication administratively prohibited"

What Is the cause of this webserver access Issue?
A . An access list along the path is blocking the traffic
B . The traffic is not allowed to be translated with NAT and dropped.
C . Users must authenticate on the webserver to access It
D . A router along the path is overloaded and thus dropping traffic

Answer: A