Scented basmati rice is the contribution of :

Options

A. Dr. Borlaug
B. Dr. B.P. Paul
C. Dr. M.S. Swaminathan
D. Dr. A.K. Singh

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the contribution to scented basmati rice. We need to identify which of the given options is associated with this specific type of rice.

2. **Analyzing the Options**:
- **Option 1: Dr. Borlag**: He is known for his contributions to the Green Revolution, particularly in Mexico. His work primarily focused on wheat and not specifically on basmati rice.
- **Option 2: Dr. B.P. Paul**: He is a plant breeder and geneticist, but his main focus has been on rose plants, not basmati rice.
- **Option 3: Dr. M.S. Swaminathan**: He is a prominent figure in the Green Revolution in India and is known for his work in enhancing the yield of rice and wheat. He played a significant role in the development of high-yielding varieties of rice, including scented basmati rice.
- **Option 4: Dr. A.K. Singh**: While he is a geneticist, he is not specifically known for contributions to scented basmati rice.

3. **Identifying the Correct Answer**: Based on the analysis, Dr. M.S. Swaminathan is the most relevant figure associated with the development of scented basmati rice. Therefore, the correct answer is **Option 3: Dr. M.S. Swaminathan**.

4. **Conclusion**: The contribution of scented basmati rice is attributed to Dr. M.S. Swaminathan, who played a crucial role in the Green Revolution and the development of high-yielding rice varieties.