Select the pair of Marine water variety for fish
(a) Rohu and catla
(b) Common carp and mackerel
(c) Rohu and pomfret
(d) Sardines and pomfret

Options

A. Rohu and catla
B. Common carp and mackerel
C. Rohu and pomfret
D. Sardines and pomfret

Answer

To solve the question of selecting the pair of marine water varieties for fish, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Types of Fish**:
- Fish can be categorized into three main types based on their habitat: freshwater fish, marine water fish, and brackish water fish. We are specifically looking for marine water fish.

2. **Analyze Option (a): Rohu and Catla**:
- Rohu and Catla are both types of carp. They are commonly found in freshwater bodies such as rivers and lakes.
- **Conclusion**: This option cannot be correct as both are freshwater fish.

3. **Analyze Option (b): Common Carp and Mackerel**:
- Common Carp is primarily a freshwater fish, while Mackerel is a marine fish found in saltwater.
- **Conclusion**: Since one is freshwater and the other is marine, this option cannot be correct.

4. **Analyze Option (c): Rohu and Pomfret**:
- Rohu is a freshwater fish, while Pomfret is a marine fish.
- **Conclusion**: This option cannot be correct as it contains one freshwater fish.

5. **Analyze Option (d): Sardines and Pomfret**:
- Both Sardines and Pomfret are marine fish. Sardines are commonly found in ocean waters, and Pomfret is also a type of marine fish.
- **Conclusion**: This option is correct as both fish are marine water varieties.

### Final Answer:
The correct pair of marine water varieties for fish is **(d) Sardines and Pomfret**.

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