Farmer Jones has 140 feet of fencing to construct a rectangular corral. If x represents the width of the corral, which function can be used to express the area A of the corral as a function of x? A. A(x) = 70x B. A(x) = x(70 - X) C. A(x) = x(140 - X) D. A(X) = X(140 - 2x)