The Muller-Breslau principle is used for the analysis of structures to help with determining influence lines for various force responses. It allows for the visualization and calculation of the effect of loads on different points within the structure. The principle is fundamental in structural analysis when we need to understand how different forces are distributed and the corresponding responses.
In this context, the principle is specifically used for drawing an influence line diagram for any force response in the structure, which makes option (A) the correct answer.