Select the most correct statement and use Table 1 - Selected Financial Figures Discount Retailing Industry 2011 below to answer the question. A. Costco and Amazon operated at competitive parity because the two companies had comparable net margins. B. With the highest operating margin in the sector, Target had a competitive advantage in the discount retail industry. C. Walmart had a competitive advantage because its return on average assets was the highest in the sector in 2011. D. Costco had a competitive advantage in 2011. E. Known for customer service and high quality, Target and Costco had a competitive advantage relative to Walmart in 2011. F. A, B, D, and E are correct, but not C