What could be possible causes for the “Serial0/0 is down” interface status?

Refer to the exhibit.

What could be possible causes for the “Serial0/0 is down” interface status? (Choose two.)
A. A Layer 1 problem exists.
B. The bandwidth is set too low.
C. A protocol mismatch exists.
D. An incorrect cable is being used.
E. There is anincorrect IP address on the Serial 0/0 interface.

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