To find the volume of a cylinder, use the formula V = πr^2h, where V is the volume, r is the radius, and h is the height.
Given the diameter is 9 yards, the radius is 4.5 yards (9/2). The height is 19 yards.
V = 3.14 * (4.5)^2 * 19
V ≈ 3.14 * 20.25 * 19
V ≈ 1208.1 yd^3
So, the correct answer is C) 1208.1 yd^3.