Which territorial DOC includes Barolo, Barbaresco, and Alba?

The Langhe DOC is the correct answer because it encompasses several renowned wine-producing areas in the Piedmont region of Italy, including Barolo, Barbaresco, and Alba. This territory is celebrated for its exceptional Nebbiolo wines, which are well-regarded for their complexity, flavor, and aging potential.

Barolo and Barbaresco are both classified as "cru" wines that derive specifically from designated sub-regions within the Langhe area. Barolo is often referred to as the "King of Wines," while Barbaresco, sometimes called the "Queen of Wines," also enjoys a prestigious reputation, both due to their characteristic aromas, flavors, and aging capabilities. Alba is known not just for its wines but also for its truffles, contributing to the overall gastronomic appeal of the region.

In contrast, Monferrato refers to another DOC area that features various wines but does not specifically include Barolo or Barbaresco. Valpolicella is a DOC located in a different region (Veneto) known mainly for its Amarone and Ripasso wines, while Trentino is another distinct region that produces a variety of wines, mostly white, and is not related to the famous red wines of the Langhe area.