The following data pertains to Ecolab, Inc. (in millions) for the year ended December 31, 2021. Ecolab, Inc. Total Assets $21,206 Interest-bearing Debt (market value) $9,085 Average after-tax borrowing rate for debt 2.8% Common Equity: Book Value $7,253 Market Value $85,423 Income Tax Rate 21.6% Market Beta 1.03 Using the information from the table, and assuming that the risk-free rate is 3.5% and the market risk premium is 5.2%, calculate Ecolab's weighted-average cost of capital: Group of answer choices 2.8% 5.5% 7.4% 8.3% None of the above