The Unit$-$Load Method is a technique used in civil engineering to compute beam deflection. It involves analyzing the deflection caused by a concentrated unit load applied at different positions along the beam. By summing up the deflections caused by each unit load, engineers can determine the total deflection of the beam.

In the Unit$-$Load Method, the deflection at any point on the beam is calculated by multiplying the deflection caused by a unit load at that point by the actual load magnitude. This method assumes that the beam's response to each unit load is linear and that the superposition principle holds, allowing the deflections to be added together.

Objective Question: What is the assumption made in the Unit$-$Load Method for computing beam deflection? A$)$ The beam is perfectly rigid B$)$ The beam is subjected to distributed loads only C$)$ The beam's response to each unit load is linear D$)$ The beam is made of a homogeneous material