Hi i need these answers as soon as possible

a)Identify which capital budgeting method tends to favour liquidity over value maximization and how might this affect the investment decision?

b)Why do we favour NPV, even though it also has problems as a capital budgeting method?

c) We often us scenario and sensitivity analysis to help in capital budgeting decision making. In a situation where you want to identify the key variables that have most influence on a project, which method would you use? Why? Give an example of each method.