Fay Corp pays its outside salespersons fixed monthly salaries as well as commissions on net sales. Sales commissions are paid in the month following the month of sale, while the fixed salaries are expensed but considered advances against commissions. However, if salespersons' fixed salaries exceed their sales commissions earned for a month, such excess is not returned to the company. Pertinent data for the month of March for the three salespersons are as follows:

Salesperson	Fixed Salary	Net Sales	Commission Rate
A	$10,000	$200,000	4%
B	14,000	400,000	6%
C	18,000	600,000	6%
Totals	$42,000	$1,200,000

What amount should Fay accrue as a debit to sales commissions expense and a credit to sales commissions payable at March 31?

$26,000

$28,000

$68,000

$70,000