Correct Answer: Acetic acid

Solution : The correct option is Acetic acid.

Acetic acid (CH ₃ COOH) , water, and trace amounts of other chemicals, which could include flavourings, make up vinegar. There is variation in the acetic acid content. Acetic acid usually makes up 5% to 8% of the volume of vinegar. Usually, two fermentation processes are used to make acetic acid: first, simple sugars are converted to ethanol by yeast, and then acetic acid bacteria are used to convert ethanol to acetic acid.