The year end financial statements for Pratt Inc., report the following information: Year ended December 31, (In millions) Year 2 Year 1 Depreciation expense $86.8 $83.5 Property and equipment, net 565.5 540.8 Land 37.7 40.0 Accumulated depreciation 932.0 917.2 Which of the following estimates the property and equipment's percent-used-up at December 31, Year 2? Select one: a. 64.8% b. 62.2% C. 15.3% d. 60.7% e. None of these are correct