[单选]
Refer to the exhibit. Look at the command output. What would be the most probable reason for this port-ID mismatch？（）

A . spanning-tree misconfiguration
B . speed mismatch configuration
C . cabling problem
D . configuration problem

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Refer to the exhibit. Look at the command output. What would be the most probable reason for this port-ID mismatch？（）

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[单选] Refer to the exhibit. Look at the command output. What would be the most probable reason for this port-ID mismatch？（）

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[单选]
Refer to the exhibit. Look at the command output. What would be the most probable reason for this port-ID mismatch？（）