In Punjab, the famous sahiwal cows were developed through

Options

A. Artificial selection and domestication of wild cows.
B. Artificial selection and European wild cows.
C. Artificial selection and domestication from ancestral wild cows.
D. Artificial selection and domestication from American cows.

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the development of Sahiwal cows in Punjab. We need to identify the method through which these cows were developed.

2. **Identifying Sahiwal Cows**: Sahiwal cows are a breed known for their high milk production and are indigenous to the Punjab region.

3. **Understanding the Terms**:
- **Artificial Selection**: This is a process where humans breed animals for specific traits, such as milk production.
- **Domestication**: This refers to the process of adapting wild animals for human use, which includes breeding them for desirable traits.

4. **Analyzing the Options**:
- **Option A**: Artificial selection and domestication of wild cow.
- **Option B**: Artificial selection and domestication of European wild cow.
- **Option C**: Artificial selection and domestication of ancestral wild cow.
- **Option D**: Artificial selection and domestication of American cows.

5. **Evaluating the Correct Option**:
- Sahiwal cows were developed through the artificial selection and domestication of wild cows. This is because they were bred specifically for traits such as milk production, which aligns with the definition of artificial selection and domestication.
- The other options mention different types of cows that are not relevant to the development of Sahiwal cows.

6. **Conclusion**: The correct answer is **Option A: Artificial selection and domestication of wild cow**.