Which of the following properties of the circuits of a graph are correct?
1. The minimum number of branches possible in a circuit will be equal to the number of elements in a circuit.
2. There are exactly two paths between any pair of vertices in a circuit.
3. There are at least two branches in a circuit.
Select the correct answer using the code given below.
1
1 and 2 only
2
1 and 3 only
3
2 and 3 only
4
1, 2 and 3