Review the following scenario, then choose the response that correctly completes the last sentence. Maria bought 100 shares of OAK stock for $20 a share on May 23, 2018. On June 6, 2019, she noticed that the stock had increased in value to $25 a share and decided to sell her shares. Maria's only other income for the year consisted of $61,000 in wages. She will claim the standard deduction when she files her return. Maria's revenue from the sale of stock will increase her taxable income by:

A) $500, and this $500 will be taxed at a capital gain rate of 15%.

B) $500, and this $500 will be taxed at her regular marginal tax rate of 22%.

C) $2,500, and this $2,500 will be taxed at a capital gain rate of 20%.

D) $2,500, and this $2,500 will be taxed at her regular marginal rate of 22%.