The factor that would decrease the food security of a community is being far from supermarkets. Thus, the correct option is C.
Food security may be defined as the measurement of the availability of food to the individuals of a specific community, state, or country.
Low food prices, and easy access, increase the chances of food security in a community. While being far from fast food restaurants does not make any sense with respect to food security.
Therefore, the correct option for this question is C.
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