By default, if after a successful Layer 2 poll, more than 20 endpoints are seen connected on a single switch port simultaneously, what happens to the port?

By default, if after a successful Layer 2 poll, more than 20 endpoints are seen connected on a single switch port simultaneously, what happens to the port?
A . The port becomes a threshold uplink
B . The port is disabled
C . The port is added to the Forced Registration group
D . The port is switched into the Dead-End VLAN

Answer: A