The map below shows all road connections between five towns, `U`, `V`, `W`, `X` and `Y`.
A graph, shown below, was constructed to represent this map.
A mistake has been made in constructing this graph.
This mistake can be corrected by
A. drawing another edge between `V` and `W`.
B. drawing a loop at `W`.
C. removing the loop at `V`.
D. removing one edge between `U` and `V`.
E. removing one edge between `X` and `V`.