EX 3-30 Vertical analysis The taken from their recent annual reports (in millions): OBJ.7 following income statement data for AT&T Inc. and Verizon Communications Inc. were AT&T Verizon Cost of services (expense).. Selling and marketing expense... Depreciation and other expenses... Operating income $132,447 60,611 39,697 20,393 127,079 49,931 41,016 16,533 $ 19,599 5 11.246 19599 a. Prepare a vertical analysis of the income statement for AT&T. Round to one decimal b. Prepare a vertical analysis of the income statement for Verizon. Round to one decimal c.Based on Requirements (a) and (b), how does AT&T compare to Verizon? place place