Which is correct set belonging to single group ?

Options

A. Bat , Pigeon , Crow
B. Man , Monkey , Chimpanzee
C. Oyster , Octopus , Otter
D. Cattle Fish , Jelly Fish , Silver Fish .

Answer

To determine which set of organisms belongs to a single group, we can analyze the provided options based on their classifications in the animal kingdom.

### Step-by-Step Solution:

1. **Identify the Groups**: We need to classify each organism in the options based on their taxonomic groups.

2. **Analyze the First Set**:
- **Bat**: Mammal
- **Pigeon**: Bird
- **Crow**: Bird
- Conclusion: This set contains both mammals and birds, so it does not belong to a single group.

3. **Analyze the Second Set**:
- **Man**: Mammal (specifically a primate)
- **Monkey**: Mammal (specifically a primate)
- **Chimpanzee**: Mammal (specifically a primate)
- Conclusion: All three belong to the class Mammalia and the order Primates. This is a correct set belonging to a single group.

4. **Analyze the Third Set**:
- **Oyster**: Mollusk
- **Octopus**: Mollusk
- **Otter**: Mammal
- Conclusion: This set contains both mollusks and a mammal, so it does not belong to a single group.

5. **Analyze the Fourth Set**:
- **Cuttlefish**: Mollusk
- **Jellyfish**: Cnidarian
- **Silverfish**: Insect
- Conclusion: This set contains organisms from different groups (mollusk, cnidarian, and insect), so it does not belong to a single group.

6. **Final Conclusion**: The only correct set that belongs to a single group is **Man, Monkey, and Chimpanzee** as they are all mammals and specifically belong to the order Primates.

### Answer:
The correct set belonging to a single group is **Man, Monkey, and Chimpanzee**.

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