Certified Sommelier Practice Exam

Saumur Mousseux is correctly identified as the option that is not a Layon Valley AOC. The Layon Valley is specifically known for its sweet wines, particularly those made from the Chenin Blanc grape, and is part of the larger Anjou wine region in the Loire Valley. The other choices—Chaume Premier Cru, Coteaux du Layon-Chaume, and Quarts de Chaume—are all recognized AOCs within the Layon Valley, each known for their high-quality sweet wines produced from late-harvest grapes.

Saumur Mousseux refers to sparkling wines produced in the Saumur region, which is adjacent to but distinct from the Layon Valley, and this differentiation in wine styles and regulations sets it apart from the AOCs found in the Layon Valley.