In 1963, several varieties such as Sonalika and Kalyan Sona, which were high yielding and disease resistant variety of

Options

A. (a) Wheat
B. (b) Bajra
C. (c) Rice
D. (d) All the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Context**: The question refers to the introduction of certain high-yielding and disease-resistant varieties of crops in 1963. This period is significant in Indian agricultural history, known as the Green Revolution.

2. **Identifying Key Varieties**: The varieties mentioned in the question are Sonalika and Kalyan Sona. These are specific names of crop varieties that were developed during this time.

3. **Linking to the Green Revolution**: The Green Revolution in India was initiated to improve agricultural productivity through the use of high-yielding varieties (HYVs) of crops, particularly wheat and rice.

4. **Recognizing the Crop Type**: Both Sonalika and Kalyan Sona are known to be varieties of wheat. They were introduced from Mexico and were specifically bred for their high yield and resistance to diseases.

5. **Conclusion**: Based on the information, we can conclude that the varieties Sonalika and Kalyan Sona are indeed varieties of wheat.

6. **Final Answer**: Therefore, the correct answer to the question is that Sonalika and Kalyan Sona are varieties of **wheat**.

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