1. When irregular cash flows are present, a common problem in capital budgeting is:

a	None of the above.
b	The possibility of multiple IRRs.
c	A complete invalidity of the NPV criterion.
d	A contradiction between the IRR and MIRR criteria.

2. In evaluating the Weighted Average Cost of Capital (WACC), financial managers consider only:

a	The total cost of capital incurred in the past.
b	Incremental or the marginal cost of capital.
c	None of the above.
d	Both total and marginal costs of capital