Which_of_the_following_about_vinegar_making_and_manufacturing_is_true?$

• A. Vinegar bacteria grow in the fermented juice liquid and on the surface. They don‚Äö√Ñ√∂‚àö√ë‚àö¬•t always form a film on the surface
• B. After acetic fermentation, vinegar should not be exposed to air as it may further oxidize to carbon dioxide and water
• C. All storage tanks/ units of vinegar should be closed
• D. All of the mentioned