Robin inherits 1,000 shares of wal-mart stock from her aunt in 2017. according to the information received from the executor of her aunt's estate, robin's adjusted basis for the stock is $55,000. albert, robin's fiancé, receives 1,000 shares of wal-mart stock from his uncle as a gift in 2017. his uncle tells albert that his adjusted basis for the wal-mart stock is $7,000. what could cause the substantial difference in the adjusted basis for robin's and albert's respective 1,000 shares of wal-mart stock?