The term that applies to Anna's purchasing preference of buying produce from her local farmers' market is "locavore."
Explanation:
1. A locavore is someone who prefers to eat food that is locally grown or produced, usually within a certain radius of where they live.
2. By choosing to buy her produce from the local farmers' market instead of grocery stores that ship produce from all over the country, Anna is exhibiting locavore behavior.
3. Locavores often support sustainable agriculture, reduce the carbon footprint associated with food transportation, and promote community connections with local farmers.
In conclusion, Anna's purchasing preference aligns with the concept of being a locavore, as she values locally sourced produce over items that are shipped long distances.