Select the correct matching of animals, their symmetry, organisation and coelom type.

Options

A. `{:("Animals","Symmetry","Organisation","Coelom type"),("Ctenophores","Radial","Diploblastic","Pseudocoelomates"):}`
B. `{:("Animals","Symmetry","Organisation","Coelom type"),("Echinoderms","Bilateral","Triploblastic","Coelomates"):}`
C. `{:("Animals","Symmetry","Organisation","Coelom type"),("Platyhelminthes","Bilateral","Triploblastic","Acoelomates"):}`
D. `{:("Animals","Symmetry","Organisation","Coelom type"),("Annelids","Biradial","Diploblastic","Coelomates"):}`

Explanation

To solve the question regarding the correct matching of animals, their symmetry, organization, and coelom type, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Option 1: Tenophora (Sea Walnuts or Sea Jellies)**
- **Symmetry**: Radial - **True**. Tenophores exhibit radial symmetry.
- **Organization**: Diploblastic - **True**. They have two germ layers (ectoderm and endoderm).
- **Coelom Type**: Pseudocoelomates - **False**. Tenophores are not pseudocoelomates; they are classified as acoelomates.
- **Conclusion**: This option is incorrect.

2. **Option 2: Echinoderms (Starfishes)**
- **Symmetry**: Bilateral (larvae) and Radial (adults) - **False**. Adults are radially symmetrical, while larvae are bilaterally symmetrical.
- **Organization**: Triploblastic - **True**. Echinoderms have three germ layers (ectoderm, endoderm, mesoderm).
- **Coelom Type**: Coelomates - **True**. Echinoderms are true coelomates.
- **Conclusion**: This option is incorrect due to the symmetry description.

3. **Option 3: Platyhelminthes (Flatworms)**
- **Symmetry**: Bilateral - **True**. Flatworms are bilaterally symmetrical.
- **Organization**: Triploblastic - **True**. They have three germ layers.
- **Coelom Type**: Acoelomates - **True**. Flatworms lack a coelom.
- **Conclusion**: This option is correct.

4. **Option 4: Annelids (Earthworms)**
- **Symmetry**: Biradial - **False**. Annelids are bilaterally symmetrical.
- **Organization**: Diploblastic - **False**. They are triploblastic.
- **Coelom Type**: Coelomates - **True**. Annelids are true coelomates.
- **Conclusion**: This option is incorrect due to the symmetry and organization descriptions.

### Final Answer:
The correct matching of animals, their symmetry, organization, and coelom type is found in **Option 3: Platyhelminthes (Flatworms)**.