Donna, a single taxpayer, purchased an antique rug for $20,000 on April 1, 2015. On November 8, 2019, she sold the rug for $25,000. Donna's 2019 taxable income is $185,000, so her marginal tax rate is 32%. Donna's gain on the sale of the rug will be taxed at a rate of:_______ a. 15% b. 20% c. 28% d. 32%