Use this information for Mason Corporation to answer the question that follow. Mason Corporation had $1,019,000 in invested assets, sales of $1,244,000, income from operations amounting to $207,000, and a desired minimum return of 13%. Round the percentage to one decimal place. The profit margin for Mason Corporation is Oa. 16.6% Ob. 13.0% Oc. 81.9% Od, 20.3%