Correct option is BGiven:(x2−9)(x+3)\frac{(x^2-9)}{(x+3)}(x+3)(x2−9)Formula Used:a2−b2=(a−b)(a+b)a^2 - b^2 = (a - b)(a + b)a2−b2=(a−b)(a+b)Solution:(x2−9)(x+3)\frac{(x^2-9)}{(x+3)}(x+3)(x2−9)=(x+3)(x−3)(x+3)=\frac{(x+3)(x-3)}{(x+3)}=(x+3)(x+3)(x−3)=(x−3)=(x-3)=(x−3)