Which of the following statements about the FICA tax is not true? a. Self-employed individuals may elect to pay either FICA taxes or self-employment taxes. b. FICA taxes are paid by both the employees and their employers. c. The income amount subject to the Social Security portion of FICA tax has increased significantly over the years. d. Wages subject to FICA tax that are received by a self-employed individual reduce the individual's maximum Social Security tax base. e. The FICA tax is composed of two parts, Social Security and Medicare