1) What are the cases in which the IRR and NPV might not give the same answer? In other words when is the IRR unreliable? 1. Mutually Exclusive Projects: 2. When the NPV is equal to 0 3. Non-Normal Cash Flows 4. When the project invalves aliens Select one: a. 1,2 , and 3. b. 1 and 3 only: c. 2 and 4 only. d. all of the above. 1 and 2 only