Which of the following equations demonstrate that the set of polynomials is not closed under the certain operations? O A. Subtraction: 3*+ **)-(-224 + 2) = 544 O B. Multiplication: (-5%+3)(-5) = 22 - 10/2 +28% -15 O C. Division: (1-5%+3) -(%-2) = %-3+ % - 2 D. Addition: (x2 + x) + (x + 1) = x2 + 2x+1 SUBMIT