61. For the constraints given below, which point is in the feasible solution space of this maximization problem? 14x + 6y≤ 42 x-y≤3 x,y ≥ 0 A. x = 1, y = 5 B. B. x = -1, y = 1 C. x = 4, y = 4 D. x = 2, y = 1