The answer is A: Supplemental Nutrition Assistance Program (SNAP).
Explanation for each option:
a. Supplemental Nutrition Assistance Program (SNAP): This is the correct answer. SNAP is the largest federal food assistance program in the United States, both in terms of the amount of money spent and the number of people participating. It provides financial assistance to low-income individuals and families to purchase food.
b. Food and Agriculture Organization (FAO): This is incorrect. The FAO is a specialized agency of the United Nations that leads international efforts to defeat hunger. It is not a federal food assistance program in the United States.
c. Supplemental Nutrition Program for Women, Infants, and Children (WIC): This is incorrect. While WIC is a significant federal assistance program, it specifically targets low-income pregnant women, breastfeeding women, and children under the age of five. It is not as large as SNAP in terms of money spent and the number of participants.
d. United Nations Children's Fund (UNICEF): This is incorrect. UNICEF is a United Nations agency responsible for providing humanitarian and developmental aid to children worldwide. It is not a federal food assistance program in the United States.
e. World Health Organization (WHO): This is incorrect. WHO is a specialized agency of the United Nations responsible for international public health. It does not provide direct food assistance and is not a federal program in the United States.