You work as a Network Administrator for XYZ CORP. The company has a TCP/IP-based network environment. The network contai

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You work as a Network Administrator for XYZ CORP. The company has a TCP/IP-based network environment. The network contains Cisco switches and a Cisco router.
You run the following command for a router interface:
show interface serial0
You get the following output:
Serial0 is administratively down, line protocol is down
What will be your conclusion after viewing this output?

A. There is a physical problem either with the interface or the cable attached to it.
B. The router has no power.
C. There is a problem related to encapsulation.
D. The interface is shut down.