The following data pertains to Ecolab, Inc. (in millions) for the year ended December 31, 2021. 1 Utilizing the information provided and assuming that the risk-free rate is 3.5% 2 and the market risk premium is 5.2%. Calculate Ecolab's weighted average cost of capital: 3 a) 2.8% 25 b) 5.5% 96 c) 7.4% 7 d) 8.3% 98 e) None of the above 99