57. The use of a neighborhood car wash costs n dollars for a membership and p cents for each wash. If a membership includes a bonus 4 free washes, which of the following reflects the cost in dollars of getting a membership at the car wash and washing a car q times, if q is greater than 4? (A) 100n + pq – 4p (B) n + 100 pq – 25p (C) (D)