Marks Corporation has two operating departments. Drilling and Grinding, and an office. The three categories of office expenses ar available for the current period: office Expenses Total Allocation Basis Salaries $ 36, 060 Number of employees Depreciation 23, 060 cost of goods sold Advertising 49, 060 Net sales Item Drilling Grinding Total Number of employees 1, 480 2, 220 3,700 Net sales $ 334, 750 $489, 250 $824, 090 Cost of goods sold $ 84, 090 $140, 000 $224,080 The amount of the total office expenses that should be allocated to Grinding for the current period is (Do not round your Interm Multiple Choice O $42,969 O $52,219 $65,069. O $108,000