Find the open intervals where the function is concave upward or concave downward Find any inection points Setect the correct choice below and. ecessary fill in the answer box(es) to complete yourchoice O A- The function is concave upward on the interva|(s) The function is never concave downward (Type your answer in interval notation. Use a comma to separate answers as needed.) O B- The function is concave upward on the interva|(s) and concave downward on the interva|(s) Q (Type your answers in intervat notation Use a comma to separate answers as needed.) IE O C- The function is concave downward on the tnterva|(s] .The function ts never concave upward. 4 (Type your answer in interval noIation Use a comma to separate answers as needed) C) D. The function is never concave upward or downward x Setect the conect choice below and. itnecessary fill in the answer box to complete your choice. O A- The function has an inflection pointat (Type an ordered pair Use a comma to separate answers as needed.) C) B. The function does not have an inection point