I need fast help in this, i have only 30 minutes please do it fast and correct

Terra Company has two divisions, the Retail Division and the Wholesale Division. The following Information was gathered for the two divisions for the current year. Operating Income Operating assets Retail Division Wholesale Division $ 2500,000 $ 6,000,000 $16,000,000 $36.000.000 Assuming that these are the only divisions of Terra Company, what is the ROI for the company as a whole? Multiple Choice O 15.7% 32.396 18.6%