Unicorn4life06 Unicorn4life06 02-03-2017 Mathematics contestada Here is Morgan's solution to this problem. 6,404 + 2,857 = 9,261 Which expression could Morgan use to check her work? A. 9,261 + 2,857 B. 6,404 – 2,857 C. 9,261 + 6,404 D. 9,261 – 2,857