Refer to the exhibit.
Exhibit 1.
Exhibit 2.
Which devices can communicate with each other at Layer 2?
A. Devices 1 and 2 can communicate at Layer 2; Devices 3 and 4 can communicate at Layer 2.
B. Devices 2 and 3 can communicate at Layer 2.
C. Devices 1 and 4 can communicate at Layer 2.
D. Devices 1 and 4 can communicate at Layer 2; Devices 2 and 3 can communicate at Layer 2.