Konerko Company sells two types of computer chips. The sales mix is 30% (Q-Chip) and 70% (Q-Chip Plus). Q-Chip has a contribution margin of $24. Q-chip plus has a contibution margin of $36. Konerko's fixed costs are $540,000. How many units of Q-chip would be sold at the break-even point?

A. 11,813

B. 5,869

C. 9,000

D. 5,000