(1 point) The polynomial function f(x) has zeros that include x=2 , x=1 , and x=3 . It is positive over the interval (2,1)(3,4) . (a) Which of the following could represent the function f(x) ? Select all that apply. A. Figure 1 B. Figure 2 C. Figure 3 D. Figure 4 Figure 1 Figure 2 Figure 3 Figure 4 (b) Based on the graph(s) you selected in part (a), what conclusions can you draw about the degree and leading coefficient of f(x) ? Select all that apply. A. The leading coefficient is negative. B. The degree of f(x) must be at least 4. C. The leading coefficient is positive. D. The degree of f(x) must be less than 4. E. The degree of f(x) must be even. F. The degree of f(x) must be odd