Sensitivity analysis is based on:

a. expanding and contracting the number of years for a project to determine the optimal project length.

b. applying different discount rates to a projects cash flows and measuring the effect on the npv.

c. avarying a single variable and measuring the resulting change in the NPV of a project.

d. Various sates of the economy and the probability of each state occurring.

e. the best, worst, and most expected situations