What conclusions can be made about this design?

Refer to the exhibit. A network technician is asked to design a small network with redundancy. The exhibit represents this design, with all hosts configured in the same VLAN. What conclusions can be made about this design?

A.
The design will function as intended

B.
Spanning-tree will need to be used.

C.
The router will not accept the addressing scheme.

D.
The connection between switches should be a trunk.

E.
The router interfaces must be encapsulated with the 802.1Q protocol.