Correct option is D
The correct answer is (D) Hydrochloric acid.
The human stomach produces hydrochloric acid (HCl), which is a strong acid secreted by the parietal cells in the stomach lining. This acid plays several important roles in digestion:
- Helps in food breakdown: Hydrochloric acid creates an acidic environment that activates digestive enzymes like pepsin, which break down proteins in food.
- Kills harmful bacteria: The acidic environment also helps destroy harmful microorganisms that may be ingested with food.
- Aids nutrient absorption: It helps the body absorb important nutrients, such as iron and calcium.
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