16. A car park charges?hp 45 for the first three hours and Php 5 for every succeeding hour or a fraction thereof. Another carpark charges Php 20 for the first three hours and Php 10 for every succeeding hour or a fraction thereof. In how many hours would a car owner pay the same parking fee in any of the two car parks? A. 2 hr B. 3 hr C.5hr D. 8 hr