Correct option is D
Explanation: In circuit analysis, particularly using Nodal Analysis, the number of independent nodal equations required to solve a circuit depends on the number of nodes in the circuit.
· Nodes are points in a circuit where two or more circuit elements are connected.
· Nodal Analysis involves writing equations (based on Kirchhoff's Current Law) for each node, excluding the reference node (also known as the ground node) which is assumed to have a potential of zero.
