Which of the following statements is FALSE? O a. The NPV profile shows the NPV of a project for various IRRS O b. Contingent projects are projects for which the acceptance of one means that other projects will also be accepted O c. Mutually exclusive projects are projects for which the acceptance of one means that other alternative projects will be rejected Od. The crossover rate is a special discount rate at which the NPV profiles of two projects cross Oe. There may be more than one IRR for cash flow streams where the cash flows change signs more than once