Which statement describes the result of issuing the spanning-tree portfast trunk command under interface configuration mode?

Which statement describes the result of issuing the spanning-tree portfast trunk command under interface configuration mode?
A . The port is allowed to go into the forwarding state immediately regardless of whether the interface is configured as an access or trunk port
B . The portfast trunk port immediately replaces the lost root port with an alternate root port
C . Trunk interface can be configured for portfast
D . The port enters the errdisable state if BPDUs are received 20

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Answer: A