Mahogany Inc. is a consulting firm. It reports its results on a cash-basis with a fiscal year ending June 30th. Mahogany performed services for customers from June 23rd to June 30th, 2016, amounting to $6,000. The customers paid Mahogany in full on July 12th. The cash-basis is not in accordance with ________, and Mahogany is in violation of the _______.

A : the Securities and Exchange Commission, income principle B :GAAP, revenue recognition principle C :GAAP, expense recognition principle D :the IRS, tax principle