Tick Tock Clocks repairs watches, clocks, and fine jewelry. The company recently signed a contract with a local business to repair and calibrate more than 100 clocks in several office buildings. The work will take four months to complete, and no revenue or expenses will be realized until the project is finished. In this case, when is revenue recognized? Over a period of time At a point in time At the time of sale In monthly installments over four months Bookmark for review