Mario Brothers, a game manufacturer, has a new idea for an adventure game. It can market the game either as a traditional board game or as an interactive smartphone app, but not both. Consider the following cash flows of the two mutually exclusive projects for Mario Brothers. Assume the discount rate for Mario Brothers is 12 percent: Year 8 1 Board Game -$570 850 210 200 App -$1,740 1,250 1,050 440 a-1. Which project should be chosen according to the payback period? Board Game App a-2. Calculate the payback period. (Do not round intermediate calculation. Round the answers to 2 decimal places.) Payback period years Board Game App years b-1. Calculate the NPV. (Do not round intermediate calculation. Round the answers to 2 decimal places. Omit $ sign in your response.) NPV $ Board Game App b-2. Which project should be chosen according to the NPV? Board Game App c-1. Calculate the IRR. (Do not round intermediate calculation. Round the answers to 2 decimal places.) IRR Board Game App c-2. Which project should be chosen according to the IRR? Board Game App d-1. Calculate the incremental IRR. (Do not round intermediate calculation. Round the answer to 2 decimal places.) Incremental IRR % d-2. Which project should be chosen according to the incremental IRR? Board Game App