For February, sales revenue is $552,000, sales commissions are 5% of sales, the sales manager's salary is $89,400, advertising expenses are $83,800, shipping expenses- total 4% of sale, and miscellaneous selling expenses are $2,400 plus 1/2 of 1% of sales. Total selling expenses for the month of February are Oa. $225,280 Ob. $201,200 Oc. $175,600 Od. $228,040