XYZ Company incurred the following costs for the month of August when it observed an activity level of 5,000 units: Variable costs $32.500: Fixed costs $25,000: Mixed costs $21.500: Total costs $79.000. During October, the activity level was 16,000 units and the total costs incurred were $178.000. If the activity level were expected to be 10.000 units for the month of December, what amount of total costs would be expected? Select one: O a. None of the answers given O b. $124.000 O e $142.000 Od 5151000 O, S133,000