The animal which belongs to class pisces is:

Options

A. Silver fish
B. Jelly fish
C. Star fish
D. Dog fish

Explanation

To determine which animal belongs to the class Pisces, we need to understand what class Pisces encompasses and differentiate it from other similar-sounding classifications.

### Step-by-Step Solution:

1. **Understanding Class Pisces**:
- Class Pisces refers to fish, which are aquatic, gill-bearing animals. They are typically characterized by their fins and scales.

2. **Identifying Common Misconceptions**:
- Some animals have names that include "fish" but do not belong to the class Pisces. For example:
- **Silverfish**: This is an insect (phylum Arthropoda) and not a fish.
- **Jellyfish**: This is a gelatinous organism (phylum Cnidaria) and also not a true fish.
- **Starfish**: This belongs to the phylum Echinodermata and is not classified as a fish.

3. **Identifying True Fish**:
- **Dogfish**: This is a type of shark, scientifically known as Scoliodon. Sharks are classified under the class Chondrichthyes, which are cartilaginous fish.

4. **Conclusion**:
- Among the options provided, the only true representative of the class Pisces is the Dogfish (Scoliodon). Therefore, the correct answer to the question is the Dogfish.

### Final Answer:
The animal which belongs to class Pisces is the Dogfish (Scoliodon).