In a network with 4 vertices and 5 edges. The number of regions is:
3.
6.
5.
2.
The transversal network in the following is:
D.
B.
C.
A.
The number of even nodes in the network of the figure is:
7.
The figure is a network; the number of arcs is:
4.
The figure, is a network.
The number of arcs is:
