Marks Corporation has two operating departments, Drilling and Grinding, and an office. The three categories of office expenses are allocated to the two operating departments using different allocation bases. The following information is available for the current period:

Office Expenses	Total	Allocation Basis
Salaries	$ 33,000	Number of employees
Depreciation	23,000	Cost of goods sold
Advertising	43,000	Percentage of total sales

Department	Number of employees	Sales	Cost of goods sold
Drilling	750	$ 332,000	$ 87,400
Grinding	1,750	498,000	142,600
Total	2,500	$ 830,000	$ 230,000

The amount of salaries that should be allocated to Drilling for the current period is:

Multiple Choice

$33,000.

$23,100.

$21,400.

$10,000.

$9,900.