When valuing a proposed investment in a project, incremental cash flows are used, which include

a. only existing cash flow from the firm that can be used as a backstop should something go wrong with the proposed investment.

b. cash flows generated directly by the investment as well as the indirect effects that the investment may have on the firms other lines of business.

c. only the total projected revenue from the investment, excluding costs.

d. incremental net income under GAAP that the investment generates for the firm.

e. none of the above.