Which of the following statements is correct with respect to the GAAP matching principle? According the GAAP matching principle revenues are accounted for when they are accrued, not necessarily when the cash comes in. The GAAP matching principle is only used in foreign countries, not in the U.S. All of the answers is correct According to the GAAP matching principle, revenues are only booked if they are accounted as cash inflow for the company. All of the answers is correct