2 x x 3 Answer the following questions about the function whose derivative is f'(x] = . x # 4. a. What are the critical points off? b. On what open intervals is f increasing or decreasing? c. At what points. if any: does f assume local maximum and minimum values? a. What are the critical points off? Select the correct choice below and ll in the answer box within your choice. [\"1 A. x = (Use a comma to separate answers as needed) [:1 B. The function fhas no critical points