In the context of major minerals (calcium and phosphorus), which mineral is the most abundant in the human body?

• A. Calcium
• B. Iron
• C. Potassium
• D. Phosphorus

Answer: (A)

Verified step by step guidance

1. Understand the context of the question: it asks about the most abundant major mineral in the human body, specifically comparing calcium and phosphorus, along with other minerals like iron and potassium.
2. Recall the roles and quantities of these minerals in the human body. Major minerals are those required in larger amounts, and calcium and phosphorus are both classified as major minerals.
3. Recognize that calcium is primarily found in bones and teeth, making up a significant portion of the body's mineral content.
4. Phosphorus is also abundant and important, especially in bones and cellular functions, but its total amount is generally less than calcium.
5. Conclude that among the options given, calcium is the most abundant mineral in the human body based on its physiological presence and function.