Foot is displaced to near the mouth and is divided into arms in

Options

A. Neopilina
B. Pila
C. Chiton
D. Sepia.

Answer

To solve the question, "Foot is displaced to near the mouth and is divided into arms in," we need to analyze the options provided: Neopilina, Pila, Chiton, and Sepia.

### Step-by-Step Solution:

1. **Understand the Structure of Mollusca**: Mollusca is a diverse group of invertebrates that includes various classes, such as Gastropoda, Bivalvia, and Cephalopoda. Each class has distinct features.

2. **Identify the Foot Structure**: The foot in mollusks is a muscular structure used for locomotion and attachment. In some mollusks, particularly in the class Cephalopoda, the foot has evolved significantly.

3. **Consider the Options**:
- **Neopilina**: This is a genus of mollusks known as monoplacophorans. They have a simple foot structure and do not have arms.
- **Pila**: This refers to a genus of freshwater snails (Gastropoda). The foot is not displaced near the mouth and does not have arms.
- **Chiton**: These are marine mollusks with a broad, flat foot. They do not have arms, and their foot is not displaced near the mouth.
- **Sepia**: This refers to cuttlefish, which belong to the class Cephalopoda. In cuttlefish, the foot has evolved into a series of arms surrounding the mouth, which is a distinctive feature of this group.

4. **Conclusion**: Based on the analysis, the correct answer is **Sepia** (cuttlefish), as they exhibit the characteristic of having the foot displaced near the mouth and divided into arms.

### Final Answer:
**Sepia**

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