Consider the following properties of a particular network theorem: 1. The theorem is not concerned with type of elements. 2. The theorem is only based on the two Kirchoff s laws. 3. The reference directions of the branch voltages and currents are arbitarary except that they have to satisfy Kirchoff s laws. Which one of the following theorems has the above characteristics?

Consider the following properties of a particular network theorem: 1.

1.	Consider the following properties of a particular network theorem: 1. The theorem is not concerned with type of elements. 2. The theorem is only based on the two Kirchoff s laws. 3. The reference directions of the branch voltages and currents are arbitarary except that they have to satisfy Kirchoff s laws. Which one of the following theorems has the above characteristics?
A.	Thevenin s theorem
B.	Norton s theorem
C.	Tellegen s theorem
D.	Superposition theorem
Answer» D. Superposition theorem