Company A has Net Income of 300,000; Gross Sales of 3,000,000 and Net Sales of 2,000,000 in 2019. Company B has Net Income of 200,000; Gross Sales of 1,333,333 and Net Sales of 1,000,000 in 2019. The profit margin is expressed as net income / net sales. What is the profit margin of Company A, Company B and in which company would you invest in with no other considerations but the profit margin? a. 15%; 20%; Company A b. 10%; 15%; Company A C. 15%; 20%; Company B d. 10%; 15%; Company B