Refer to the exhibit.

Why did the device return this message?

A.
The command requires additional options or parameters

B.
There is no show command that starts with ru.

C.
The command is being executed from the wrong router mode.

D.
There is more than one show command that starts with the letters ru.

Explanation:
Answer D is correct because when you type the incomplete command having more same more
command same up to types characters it shows display the ambiguous command error.