I have this question here, but I don't really understand what they're asking.

If P(z) is a polynomial of degree 4 with all of its coefficients real with ai and bi

as two of its zeros, then the term that does not contain z is:

A) ab B) a - b C) a + b D) a^2b^2 C) a^3b^3

So what do they mean by, "the term that does not contain z"?

David.