The switch MAC address table is existing as follows, which of the following statements is correct?
A . The MAC address 5489-9885-1838 is manually configured by the administrator.
B . The MAC address 5489-9811-0b49 is manually configured by the administrator
C . The MAC address 5489-3891-1450 is manually configured by the administrator.
D . After the switch is restarted, all MAC addresses need to be re-learned.
Answer: B