Determine if the following statement is always true, sometimes true, or never true. When integrating a polynomial function of 6" with respect to x, by using the substitution u = a", this substitution results in a new integral that is a polynomial in u. Choose the correct answer below. (:3 A. The statement is always true. (:3 B. The statement is sometimes true. If the constant term is 0, the substitution will yield a polynomial in u. [:3 C. The statement is sometimes true. If the constant term is not equal to 0, the substitution will yield a polynomial in u. (:1 D. The statement is never true