Which of the following statements concerning the taxation of Social Security benefits is correct? O A. The maximum amount of Social Security benefits that can be subject to income tax is 50 percent O B. Provisional income is the amount of income that is subtracted from Social Security benefits to determine the amount of the benefits that are subject to tax OC. The taxpayer's tax-exempt interest for the year is considered when determining the portion of the Social Security benefit that is subject to tax OD. Today, everyone's Social Security benefits are taxed for federal income tax purposes