An exotic breed of cow is

Options

A. ongole
B. friesian
C. halliker
D. deoni

Answer

### Step-by-Step Solution:

1. **Understanding Exotic Breeds**: Exotic breeds refer to those breeds of animals that are not native to a particular region or country. They are often imported or crossbred with local varieties to enhance certain traits, such as milk production.

2. **Analyzing the Options**:
- **Option 1: Engle (Nellore)**: This breed is from Andhra Pradesh, India, and is classified as a general utility breed. It is not considered exotic as it is native to India.
- **Option 2: Frisian**: This breed, specifically the Holstein Frisian, originates from Holland. It is known for its high milk production and is indeed an exotic breed.
- **Option 3: Helica**: This breed is found in Karnataka and is classified as a draught breed. It is also not an exotic breed.
- **Option 4: Deoni**: This breed is a milch breed found in Andhra Pradesh and is native to India, thus not exotic.

3. **Identifying the Correct Answer**: After analyzing all the options, it is clear that the only exotic breed listed is the Frisian, specifically the Holstein Frisian.

4. **Conclusion**: The exotic breed of cow from the given options is **Frisian**.