If there are (N-2+3) Node-Voltage equations then the number of nodes in the circuit are __________

(a) N+2

(b) N+1

(c) N

(d) N-1

The question was posed to me in an international level competition.

This intriguing question comes from The Node-Voltage Method and Dependent Sources and Some Special Cases topic in section Techniques of Circuit Analysis of Electric Circuits

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