The current in any branch of a circuit supplied by a multipower source can be determined by finding the current produced in that particular branch by each of the individual power sources acting alone. This simplification is done in accordance with _____.

A) Thevenin's theorem
B) Norton's theorem
C) the superposition theorem
D) Kirchhoff's laws

The superposition theorem states that in a linear circuit with multiple sources, the voltage across (or current through) an element can be determined by considering each source independently while replacing all other independent sources with their internal resistances. This approach simplifies the analysis of circuits with multiple power sources by allowing for the calculation of the contribution from each source separately.