Final answer:
The intent of the Social Security system is to supplement other retirement income, not to cover all expenses, healthcare costs, or costs of an assisted living facility for retirees.
Step-by-step explanation:
The intent of the Social Security system is most closely stated by option b: to supplement a citizen's other retirement income. Social Security provides monthly retirement benefits to individuals 65 and older and is designed to act as a social safety net as people age. It was never intended to pay all of a retiree's expenses. Rather, it provides benefits that are equivalent to a percentage of an individual's previous wages, aiding in alleviating poverty among the elderly and supporting them financially. Health care costs for the elderly, on the other hand, are primarily covered by Medicare, a separate program that ensures access to health care for senior citizens and retirees.