Which of the following is a pair of freshwater variety of fish ?
[Rohu, catla, Mackerel, pomfret ,Bombay duck)

Options

A. Rohu and catla
B. Mackerel and catla
C. Mackerel and pomfret
D. Bombay Duck and pomfret

Answer

To solve the question about which of the following is a pair of freshwater varieties of fish, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Fish Types**: We need to determine which of the listed fish are freshwater varieties. The options provided are:
- Rohu
- Catla
- Mackerel
- Pomfret
- Bombay Duck

2. **Classify Each Fish**:
- **Rohu**: This is a freshwater fish commonly found in rivers and ponds in India.
- **Catla**: This is also a freshwater fish, often found in the same habitats as Rohu.
- **Mackerel**: This is a marine fish, typically found in saltwater.
- **Pomfret**: This is also a marine fish, found in the ocean.
- **Bombay Duck**: This is a marine fish, commonly found in the Arabian Sea.

3. **Select the Freshwater Fish**: From our classification:
- Freshwater Fish: Rohu, Catla
- Marine Fish: Mackerel, Pomfret, Bombay Duck

4. **Identify the Pair**: The only pair of freshwater fish from the options is Rohu and Catla.

5. **Conclusion**: Therefore, the correct answer to the question is the pair of freshwater fish: **Rohu and Catla**.

### Final Answer:
The pair of freshwater varieties of fish is **Rohu and Catla**.