Phylum Mollusca is characterized by

Options

A. Diploblastic , Bilaterally symmetrical Coelomates
B. Triploblastic , Bilaterally symmetrical , Pseudocoelomates
C. Triploblastic , Bilaterally symmetrical , Coelomates
D. Diploblastic Radially symmetrical, Acoelomates

Answer

To solve the question regarding the characteristics of Phylum Mollusca, we will analyze the options provided and determine which one accurately describes this phylum.

### Step-by-Step Solution:

1. **Understanding Phylum Mollusca**:
- Phylum Mollusca includes a diverse group of animals such as snails, octopuses, squids, oysters, and clams. These organisms are primarily found in aquatic habitats.

2. **Identifying Key Characteristics**:
- Mollusca are known to have three primary embryonic layers: ectoderm, mesoderm, and endoderm. This indicates that they are **triploblastic**.
- They exhibit **bilateral symmetry**, meaning their body can be divided into two mirror-image halves along one plane.
- Mollusca possess a true coelom (body cavity), which categorizes them as **coelomates**.

3. **Evaluating the Options**:
- **Option A**: Diploblastic Bilaterally Symmetrical Pseudocoelomate - Incorrect, as mollusks are triploblastic and coelomates.
- **Option B**: Triploblastic Bilaterally Symmetrical Pseudocoelomate - Incorrect, as mollusks are coelomates, not pseudocoelomates.
- **Option C**: Triploblastic Bilaterally Symmetrical Coelomate - Correct, as it accurately describes the characteristics of mollusks.
- **Option D**: Diploblastic Radially Symmetrical Pseudocoelomate - Incorrect, as mollusks are neither diploblastic nor radially symmetrical.

4. **Conclusion**:
- The correct answer is **Option C: Triploblastic Bilaterally Symmetrical Coelomate**.