Our stomach produces
hydrochloric acid
The explanation for the correct answer
(A) Hydrochloric acid
Hydrochloric acid is produced in the stomach which helps in the digestion of food. The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins.
The explanation for the incorrect answer
(B) sulphuric acid
Sulphuric acid is not produced in our stomach because it is a strong acid and is known as the king of chemicals.
(C) nitric acid
Nitric acid is not used in the digestion of food and it is not produced by our stomach.
Therefore, our stomach produces hydrochloric acid i.e Option (A)