1. Conflicts between NPV and IRR on mutually exclusive projects can be due to the following reasons:

a. the reinvestment rate assumption, the expenditure in time period 0, and salvage value

b. Project scale, the reinvestment rate assumption, size of cash flows

c. the expenditure in time period "0, the riskiness of the projects, and the salvage value

d. Timing of cash flows, project scale, and the reinvestment rate assumption

e. the reinvestment rate assumption, the expenditure in time period "0" and the riskiness of the project

2. The standard deviation of a portfolio is the weighted average of the state deviations of the individual stocks in the portfolio.

a. true

b. false