.Dandy many factoring company. produced and sold 30000 deaths during the last year at an average price of $25 per units. units variable costs were the following

Variable manufacturing cost $9

Variable selling and administrative costs 6

Total $15

Total fixed cost were $250,000. There was no year in work in process inventory. If Dandy had spent an additional $15,000 on Advertising then sales would have increased by $30,000. If trendy had made this investment what change would have occurred in Dandy's pretax profit

A. $3000decreases

B. 4200 increase

C. 3000 increase

D. 4200 decrease