Kwan acquired a warehouse for business purposes on August 30, 2002. The building cost $420,000. Kwan took $227,600 of depreciation on the building, and then sold it for $500,000 on July 1, 2021. Required: a. What is the adjusted basis for the warehouse? b. What amount of the gain or loss is realized on the sale of the warehouse? c. What amount of the gain or loss is unrecaptured? d. At what rate is the unrecaptured gain or loss taxed? e. What amount of the gain or loss qualifies as a 1231 gain or loss?