Use - co or co where appropriate to describe the behavior at each zero of the denominator and identify all vertical asymptotes. - 3x f(x ) = X - 3 Locate all zeros of the denominator and describe the behavior of the function at those values. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. O A. There are two zeros. The smaller zero is x = and the larger zero is x = . As x approaches the smaller zero from the left and right, f(x) approaches and , respectively. As x approaches the larger zero from the left and right, f(x) approaches and , respectively. O B. There is one zero, at x = . As x approaches this zero from the left and right, f(x) approaches and , respectively. O C. There are no zeros of the denominator. Identify all vertical asymptotes. Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. O A. From left to right the asymptotes are . and (Type equations.) O B. From left to right the asymptotes are and (Type equations.) O C. The asymptote is (Type an equation.) O D. The function has no vertical asymptotes