The correct answer is option A.
Vinegar and antacids combine to make salts. Vinegar contains acetic acid, which is weakly acidic in nature. Antacids are made of aluminum hydroxide and magnesium hydroxide both of which are weak bases.
The chemical reaction between vinegar and antacids is as follows:
3CH₃COOH + Al(OH)₃ → (CH₃COO)₃Al + 3H₂O
Here aluminium acetate is the salt formed.