Ibsen Clinic uses client visits as its measure of activity. During December, the clinic budgeted for 3,300 client visits, but its actual level of activity was 3,340 client visits. The clinic has provided the following data concerning the formulas used in its budgeting and its actual results for December: Data used in budgeting: Revenue Personnel expenses Medical supplies Dccupancy expenses Administrative expenses Total expenses Actual results for December: Fixed element per Variable element per month $ 0 $ 32,400 1,500 client-visit $ 40.00 $13.40 4.80 9,1081 2.10 6,708 0.40 $ 49,700 $ 20.70 Revenue Personnel expenses Medical supplies Occupancy expenses Administrative expenses S 134,170 $ 88,776 $ 17,302 $ 15,754 $ 8,296 The personnel expenses in the planning budget for December would be closest to: Multiple Choice $76,620 O O O $77,156 $80.776 $79,809