Blacksburg789go Blacksburg789go Math Answered B. F(x) = 3 + xstandardform of the polynomial function4. Which of the following is theF(x) = (x+3)(x + 1)(x - 1)?A. S(x) = x3 + 3x² _xx3B. 1x) = x+3x²-x-3c. f(x) = x - 3x? -x+3D. (x)=x²-3x² + x-3