If sales are $305,000, variable costs are 75% of sales, and operating income is $36,300, the operating leverage is Oa. 1.6 Ob. 0.0 Oc. 2.1 Od. 6.3 If the contribution margin ratio for France Company is 36%, sales are $443,000, and fixed costs are $92,000, the operating income is Oa. $67,480 Ob. $159,480 Oc. $53,984 Od. $92,000