The following table shows the length and width of a rectangle: Length Width Rectangle A 4x 5 3x − 2 Which expression is the result of the perimeter of rectangle A and demonstrates the closure property? 14x 6; the answer is a polynomial 14x 6; the answer may or may not be a polynomial 2x 6; the answer is a polynomial 2x 6; the answer may or may not be a polynomial.