The following statement about the alarm reversal function, which is wrong?

The following statement about the alarm reversal function, which is wrong?
A . For ports that have not opened services, alarm reversal is used to avoid related alarms
B . By default, it is non-reverse mode. In this mode, the alarm of the device port cannot be reversed.
C . In automatic recovery mode, regardless of whether the port currently has an alarm or not, the port device alarm can be reversed
D . After the port device alarm is reversed, no alarm is reported when there is an actual alarm, and an alarm is reported when there is no actual alarm.

Answer: C