Suppose that the graph below is the graph of f (x), the derivative of f(x). Find the Select the correct choice below and, if necessary, fill in any answer box to open intervals where the original function is concave upward or concave complete your choice. downward. Find any inflection points. O A. The original function has an inflection point(s) at x = (Use a comma to separate answers as needed. Use integers or fractions for any numbers in the expression.) Ay O B. The original function does not have an inflection point. Select the correct choice below and, if necessary, fill in any answer box to complete your choice. 16 O A. The original function is concave upward on the interval(s) (Type your answer in interval notation. Use a comma to separate answers as needed.) O B. The original function is never concave upward. Select the correct choice below and, if necessary, fill in any answer box to complete your choice. O A. The original function is concave downward on the interval(s) (Type your answer in interval notation. Use a comma to separate answers as needed.) O B. The original function is never concave downward