Let P(t) represent the number of cars in a school parking lot t hours after 7 a.m. P(0) = 8 and P'(0) = 12, which ofthe following statements must be true?1. The instantaneous rate of change in the number of cars in the parking lot is 12 cars per hour at 7 a.m.II. The number of cars in the parking lot is increasing at 7 a.m.III. There are 20 cars in the parking lot at 8 a.m.OnoneOlonlyOI and II onlyII and III only