Find the area of the shaded region enclosed by the functions y=(9)/(2)x, y=9, and y=(9)/(25)x^(2).
A. Calculate the definite integral of y=(9)/(2)x from x=0 to x=4.
B. Calculate the definite integral of y=9 from x=0 to x=4.
C. Calculate the definite integral of y=(9)/(25)x^(2) from x=0 to x=4.
D. Subtract the areas calculated in options A, B, and
C from each other to find the area of the shaded region.