what is the problem on the Brevard router that is causing the lack of connectivity?

Two routers named Atlanta and Brevard are connected by their serial interfaces as shown in the
exhibit, but there is no data connectivity between them. The Atlanta router is known to have a
correct configuration. Given the partial configurations shown in the exhibit, what is the problem on
the Brevard router that is causing the lack of connectivity?

A.
The serial line encapsulations are incompatible.

B.
The subnet mask is incorrect.

C.
The bandwidth setting is incompatible with the connected interface.

D.
The maximum transmission unit (MTU) size is too large.

E.
The IP address is incorrect.

F.
A loopback is not set.

Explanation:
The IP address of the S0 interface of Atlanta is 192.168.10.0/24, and the IP address of the S1

interface of Breavard is 192.168.11.0/24. Change the IP address of the S1 interface to
192.168.10.0/24, the same as that of the S0 interface.