A network technician reviews an entry on the syslog server and discovers the following message from a switch:
SPANNING-TREE Port 1/1 BLOCKED
Which of the following describes the issue?
A. A loop was discovered, and the impact was mitigated.
B. An incorrectly pinned cable was disconnected.
C. The link-local address on the port is incorrect.
D. The port was shut down, and it needs to be reactivated.
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