Which of the following statements is true of the economic break-even point?
-It is the number of units that must be sold each year during the life of a project so that the NPV of a project equals $0.
It is the level of unit sales at which cash flows or profitability for one project alternative switches from being lower than that of another alternative to being higher.
It is the number of units that must be sold for accounting operating profit to equal $0.
It is the number of units that must be sold for pretax operating cash flow to be $0.