Jingo Company has reported $750,000 in sales (25,000 units) for last year with a net operating income of $25,000. At the break-even point, the company's total contribution margin equals $500,000. Based on this information, which of the following is correct? *

a-The contribution margin ratio is 40%.

b-The break-even point is 24,000 units.

c-The variable expenses are 60% of sales.

d-The variable expenses per unit are $9 per unit.