Co. Inc. is looking to achieve a net income of 15 percent of sales. Here's the firm's profile: Unit sales price is $10; variable cost per unit is $6; total fixed costs are $40,000. What is the level of sales in units required to achieve a net income of 15 percent of sales?
A) 12,000 units
B) 21,000 units
C) 16,000 units
D) 20,000 units