Final answer:
The federal government is not a direct source of funding for Social Security benefits; funding comes from employees, employers, and self-employed individuals through payroll taxes.
Step-by-step explanation:
The source of funding for Social Security benefits that is NOT accurately listed is C. Federal government. Social Security is primarily funded through payroll taxes collected from employees, employers, and self-employed individuals. Employees and employers each pay a portion of the payroll tax, while self-employed individuals pay the entire tax themselves. The federal government's main source of revenue is through federal income taxes, and it does not directly fund Social Security benefits. Social Security benefits aim to provide financial support mainly to the elderly, as well as others with disabilities or survivors of deceased workers.