Which of the following network configuration options contains a direct link between any two host machines?

A.
Bus

B.
Ring

C.
Star

D.
Completely connected (mesh)

Explanation:
A completely connected mesh configuration creates a direct link between any two host machines.
Incorrect answers:
A:
A bus configuration links all stations along one transmission line.
B:
A ring configuration forms a circle, and all stations are attached to a point on the transmission circle.
D:
In a star configuration each station is linked directly to a main hub.