The correct option is (c).
Explanation
Vitamin D is a fat-soluble vitamin that functions as a pro-hormone. It is critical for maintaining mineral balance in the body, specifically regarding bone health and calcium metabolism.- Statement 1 is Incorrect: Vitamin D is essential for the absorption and utilization of Calcium and Phosphorus, not Iron. These minerals are vital for the formation and maintenance of strong bones and teeth. Iron absorption is primarily enhanced by Vitamin C (Ascorbic acid).
- Statement 2 is Correct: The human body is capable of synthesizing Vitamin D endogenously. When the skin is exposed to ultraviolet B (UVB) radiation from sunlight, a precursor molecule named 7-dehydrocholesterol in the skin is converted into Vitamin D3 (cholecalciferol).
- Statement 3 is Correct: Prolonged deficiency of Vitamin D results in impaired bone mineralization. In children, this leads to Rickets, a condition characterized by soft, weak bones and skeletal deformities such as bowed legs. In adults, severe deficiency leads to Osteomalacia.
Key Takeaway: Vitamin D is synthesized in the skin upon exposure to sunlight and is indispensable for the absorption of Calcium and Phosphorus, preventing bone disorders like Rickets and Osteomalacia.