Answer:
None of the above
Step-by-step explanation:
A sensitivity analysis measures how under a certain set of assumptions, different values of an independent variable influence the dependent variable. It is also known as what if analysis and it is based on various assumptions. Options given in the question like changes in depreciation tax shield over a project's life, changes in production levels with the changes in revenue etc. are absolutely certain to an extent, or in other words, bound to happen.