Which of the following statements are false?

RSTP provides different functions in different scenarios.

Which of the following statements are false?
A . If the edge port on the switch enabled with BPDU protection receives RST BPDU, the switch sets the edge port as a non-edge-port and triggers STP calculation.
B . The role of the designated port that is enabled with root protection cannot be changed.
C . When the designated port enabled with root protection receives optimal RST BPDUs, the port enters the Discarding state and does not forward packets. If the port does not receive optimal
D . RST BPDUs within a certain period of time, the port will automatically restore to the Forwarding state.
E . After TC protection is enabled, you can set the number of times the switch processes TC BPDUs within a certain period.

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Answer: A