Refer to the exhibit and the partial configuration of switch SW_A and SW_B. STP is
configured on all switches in the network. SW_B receives this error message on the console port:

00:06:34: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet0/5
(not half duplex), with SW_A FastEthernet0/4 (half duplex) , with TBA05071417(Cat6K-B)
0/4 (half duplex).
What would be the possible outcome of the problem?

A.
The root port on switch SW_A will automatically transition to full-duplex mode.

B.
The root port on switch SW_B will fallback to full-duplex mode.

C.
The interfaces between switches SW_A and SW_B will transition to a blocking state.

D.
Interface Fa 0/6 on switch SW_B will transition to a forwarding state and create a bridging
loop.