Sales and average operating assets for Company P and Company Q are given below: Sales Average Operating Assets Company P $20,000 $10,000 Company Q$50,000 $8,000 What is the margin that each company (Company P and Company Q, respectively) will have to earn in order to generate a return on investment of 20%? 2.5% and 5%. 10% and 3.2%. 12% and 16%. 50% and 100%.