Discuss the role of sensitivity analysis in Linear Programming (LP.)

Discuss the role of sensitivity analysis in Linear Programming (LP.) Under what circumstances is it needed, and under what conditions do you think it is necessary? Please discuss the meaning of the upper bound and lower bound within the context of sensitivity analysis.

Please include at least one illustration of the application of sensitivity analysis. You may supplement with a worksheet or include the numerical example within the body of your discussion

This only has to be a few words for a discussion question, like a paragraph.