In 3anuary 2019 , United Airlines (UAL) had a matket capitalization of $23.09 bilion, dobt of $13.41 bllion, and cash of $3.87 bilion. United Airlines had revenues of $40.86 bulion, Southis Airines (LUV) had a macket capialization of $27.39 bition, debt of $3.56 billion, cash of $3.52 billon, and revenues of $22.13 billion. a. Compare the market capitaczation-4o-revenue ratio (also called the price-to-sales ratio) for United Airlines and Southwest Airines: b. Compare the enterprise value-to-tevenue rato for United Aifines and Southwest Airlines. c. Which of these comparisans is more meaninaful? Explain