Which statement is most accurate regarding Cote Rotie?

The statement about Cote Rotie including up to 20% Viognier in the blend and requiring co-fermentation is accurate. Cote Rotie, a prestigious wine appellation in the Northern Rhône Valley of France, traditionally makes red wines primarily from Syrah. However, it is permitted to include a small percentage of white grape varieties, specifically Viognier, to enhance the aromatic complexity of the wine. This co-fermentation process, where Syrah and Viognier are fermented together, contributes to the character of the finished wine, adding floral and fruit notes that complement the rich flavors of the Syrah. This practice is a hallmark of the region and reflects the unique winemaking traditions found in Cote Rotie.

The other statements are less accurate concerning the regulations and characteristics of Cote Rotie wines. Exclusivity to Syrah grapes is not true since the inclusion of Viognier is part of the appellation's guidelines. Additionally, while aging in oak is common, there is no strict requirement that Cote Rotie wines must be aged in new oak for a minimum time frame specified in the chosen option. Finally, Cote Rotie is not known for producing wines with high residual sugar, as it is primarily recognized for