Problem 4-1 What is a Capital Asset?, Holding Period, and Calculation of Gain or Loss ( LO 4.1,4.2,4.3) Martin sells a stock investment for $26,000 on August 2, 2021. Martin's adjusted basis in the stock is $15,000. a. If Martin acquired the stock on November 15,2019 , calculate the amount and the nature of the gain or loss. b. If Martin had acquired the stock on September 10,2020 , calculate the amount and nature of the gain or loss