Select either true or false for the following statements. 1. Relevant costs are also known as unavoidable costs 2. Incremental costs are also known as differential costs 3. An out-of-pocket cost requires a current and/or future outlay of cash. 4. An opportunity cost is the potential benefit that is lost by taking a specific action when two or more alternative choices are available 5. A sunk cost will change with a future course of action