Which of the following represents a large AVA located in the North Coast of California?

Napa Valley is a well-known American Viticultural Area (AVA) located in the North Coast region of California. It is renowned for its premium wine production, particularly Cabernet Sauvignon and Chardonnay, and has gained international acclaim for the quality of its wines. Napa Valley is characterized by its diverse microclimates, unique terroirs, and a long history of winemaking, making it one of the most prestigious wine regions in the world. The area's focus on quality grape growing and winemaking is a key factor in its recognition as an important AVA.

In contrast, while Monterey and Santa Barbara are also recognized wine-producing regions, they are geographically located to the south of Napa Valley. Temecula, located in Southern California, is not considered part of the North Coast AVAs. These regional distinctions are significant when discussing California's wine landscape, as each area offers unique climate, soil, and grape varieties.