Final answer:
WIC is a national program administered by the USDA. In Texas, it serves all counties across the state.
Step-by-step explanation:
WIC (Women, Infants, and Children) is a national program in the United States. It is administered by the United States Department of Agriculture (USDA).
In Texas, WIC is available in all counties across the state. This means that it serves all Texas counties, providing nutrition assistance to eligible pregnant women, new mothers, and young children.
Therefore, the correct answer is c) It serves all counties in Texas.