functions. < Question 2 of 5 ^ This question: Find the absolute maximum and minimum values of the function, if they exist, over the indicated interval. Also indicate the x-value at which each extremum occurs. f(x)=9x2/3-1,1] Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. OA. The absolute maximum value is at x= and the absolute minimum value is (Use a comma to separate answers as needed.) OB. The absolute minimum value is at x= and there is no absolute maximum. (Use a comma to separate answers as needed.) at x= and there is no absolute minimum. OC. The absolute maximum value is (Use a comma to separate answers as needed.) OD. There is no absolute minimum and there is no absolute maximum. at x =