2. {4 points} The following data pertain to Turk Company's operations last year: Sales ............................................................. $900,000Net Operating income .................................. $3 6.000Contribution margin ................................... $150,000Average Operating assets ............................ $180,000Stockholders equity .................................... $100,000Plant, property, & equipment _____________________ $120,000 If the residual income for the year was $9,000, the minimum required rate of return must have been: a. 36% b. 20% c. 15% d. 4% e. None of the above.