Which of these terms refers to wines that are produced with a focus on natural farming practices?

The term "Biologico" specifically refers to wines that are produced using organic farming practices. This emphasizes a commitment to natural methods, avoiding synthetic pesticides and fertilizers, and adhering to regulations that promote environmental sustainability. In the context of Italian wines, "Biologico" labels indicate that the grapes used in the wine have been cultivated in accordance with organic farming standards, ensuring that they are grown in a way that enhances biodiversity and healthfulness both in the vineyard and for consumers. This focus on natural farming is increasingly significant in the wine industry as consumers seek products that are not only high quality but also made with care for the environment and health.

The other terms presented do not relate specifically to organic practices. "Classico" generally denotes wines from traditional growing areas legally recognized for quality and heritage. "Tradizionale" refers to traditional winemaking methods but doesn't specify farming practices, while "Selezionato" indicates a selection process for higher-quality wines but lacks a direct connection to natural farming. Therefore, "Biologico" is the most accurate choice for wines produced with a focus on natural farming practices.