5. Which statement is true to f(x)= 11-2x +8x2 +3x3? A. It is a polynomial function whose leading term is 11. B. It is not a polynomial function because it has negative integer. C. It is a polynomial function which can be written in its standard form f(x)=3x3 + 8x2 - 2x + 11. D. It is not a polynomial function because it cannot be written in factored form. 6 Which of the following in