If a project has a net present value equal to zero,then: a. The total of the cash inflows must equal the intitial cost of the project. b. The project earns a return exactly equal to its cost of capital. c. A decrease in the projects initial cost will cause the project to have a negative NPV. d. Any delay in receiving the projected case inflows will cause the project to have a positive NPV. e. The projects PI must also be equal to zero.