In the production of sparkling wines, the traditional method and the Charmat method differ primarily in where the second fermentation occurs.

• A. In a pressure tank for the traditional method, and in the bottle for Charmat.
• B. In oak casks for both methods.
• C. The second fermentation occurs in the bottle for both methods.
• D. The second fermentation occurs in the bottle in the traditional method, while the second fermentation occurs inside a pressure tank in the Charmat method.

Answer: (D)