No, the superposition theorem can be applied to any linear circuit, not just those involving multiple-choice questions (MCQs).
The superposition theorem is a technique used in circuit analysis to simplify the process of solving circuits with multiple sources (voltage or current sources). It allows you to consider one source at a time while "turning off" the others (replacing voltage sources with short circuits and current sources with open circuits). Then, you can find the contribution of each source to the overall response, and finally, sum them to get the total effect.
This theorem is generally used in electrical circuits, whether they are presented in problems like MCQs or not. It works for circuits with resistors, capacitors, inductors, and dependent or independent sources, as long as the circuit is linear.
In summary, superposition is a method for analyzing circuits and doesn't depend on the format of the question.