Answer:
The correct response would be the constant. (I find it easier to think of it as a y intercept)
Explanation:
The three parts of a polynomial consist of Ax^2 plus or minus Bx plus or minus c. X is a number called a coefficient. That means that its an unknown variable being multiplied into another number. AKA Ax and Bx. The very last thing is simply just a y intercept, since polynomials are different from state of the art linear graphs, it changes the term to constant.