Which three DOCs are located on the alluvial plain north of the Adriatic?

The presence of Aquileia, Piave, and Isonzo as the correct answer is rooted in their geographic and climatic characteristics, as well as their historical significance as wine-producing regions in the northeastern part of Italy, specifically adjacent to the Adriatic Sea.

Aquileia is known for its history and as a significant viticultural area, known for producing both white and red wines, including Friulano and Merlot. The DOC of Piave, located near the river Piave, benefits from the region's alluvial soils that are ideal for viticulture, producing quality wines such as Cabernet Sauvignon and Merlot. Meanwhile, the Isonzo DOC is situated along the Isonzo River, with a similar geographical profile that supports the cultivation of a variety of grape types, including Sauvignon Blanc and Pinot Grigio, benefiting from the unique combination of the alluvial soil and the climate influenced by the Adriatic.

The other options consist of regions not situated on the alluvial plain north of the Adriatic. For instance, Montepulciano and Chianti are found in central Italy, while Etna and the Colli Euganei are located in different parts of the country, specifically in areas further inland or in southern Italy. This geographical