【单选题】
A It remains in err-disabled state until the shutdown/no shutdown command is entered in theinterface configuration mode.
B It remains in err-disabled state until the errdisable recovery cause failed-port-state command is entered in the global configuration mode.
C It remains in err-disabled state until the no shutdown command is entered in the interface configuration mode.
D It remains in err-disabled state until the spanning-tree portfast bpduguard disable command is entered in the interface configuration mode
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