Zeke Company sells $24,200$ units at $$15$ per unit. Variable costs are $$10$ per unit, and fixed costs are $$38,800.$ The contribution margin ratio and the unit contribution margin, respectively, are

a$.2\%$ and $$15$ per unit

b$.33\%$ and $$15$ per unit

c$.2\%$ and $$10$ per unit

d$.33\%$ and $$5$ per unit