Identify the inflection points and local maxima and minima of the function graphed to the right. Identify the open intervals on which the function is differentiable and is concave up and concave down. y = Find the inflection point(s). Select the correct choice below and, if necessary, fill in the answer box to complete your choice. X CA. The point(s) is/are 47 (Type an ordered pair, using integers or fractions. Simplify your answer. Use a comma to separate answers as needed.) O B. There are no inflection points. Find each local maximum. Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. O A. There is one local maximum value of atx= (Simplify your answers. Type integers or fractions.) O B. There are two local maxima. In increasing order of x-value, the values are and atx= and x = , respectively. (Simplify your answers. Type integers or fractions.) O C. There are no local maxima