Deficiency of which of the vitamin in causes rickets?

Options

A. Vitamin-D
B. Vitamin-C
C. Vitamin-`B_(12)`
D. Vitamin-E

Answer

To answer the question regarding the deficiency of which vitamin causes rickets, we can follow these steps:

### Step 1: Understand Rickets
Rickets is a condition characterized by the softening and weakening of bones in children. It primarily affects bone development and can lead to deformities.

**Hint:** Look for symptoms associated with rickets to identify the underlying cause.

### Step 2: Identify the Nutritional Factors
The condition of rickets is linked to the body's ability to absorb essential minerals like calcium and phosphorus, which are crucial for bone health.

**Hint:** Consider which vitamins are known to play a role in mineral absorption and bone health.

### Step 3: Determine the Vitamin Involved
Vitamin D is essential for the absorption of calcium and phosphorus in the body. A deficiency in vitamin D leads to inadequate mineralization of bones, resulting in rickets.

**Hint:** Recall the role of vitamin D in the body and its sources, such as sunlight and certain foods.

### Step 4: Confirm the Answer
Based on the information gathered, the deficiency of vitamin D is the primary cause of rickets. This vitamin helps in the absorption of calcium and phosphorus, which are vital for strong bone formation.

**Hint:** Verify your answer by considering other vitamins and their associated deficiencies to ensure that vitamin D is indeed the correct answer for rickets.

### Final Answer
The deficiency of vitamin D causes rickets.