A circular diesel fuel spill is increasing in diameter at a rate of 400 feet per hour. the function for the increase in diameter is represented by f(h) = 400h, where h is hours. the function for the increase in area is represented by g(d) = π(0.5d)2, where d is in feet. which is the composite function for the total area of the oil spill as a function of hours, h? g(f(h)) = π(500h)2 g(f(h)) = π(100h)2 g(f(h)) = π(400h)2 g(f(h)) = π(200h)2