Pila is

Options

A. Temple Shell
B. Apple Snail
C. Pond Snail
D. Both B and C

Answer

### Step-by-Step Solution:

1. **Identify the Organism**: The question asks about "Pila." We need to determine what Pila is classified as in biological terms.

2. **Classification**: Pila belongs to the phylum Mollusca. Within this phylum, it is categorized under the class Gastropoda.

3. **Characteristics of Gastropoda**: Gastropods exhibit a unique feature during their larval stage, where they are bilaterally symmetrical. However, as they mature into adults, they undergo a process called torsion, which results in their bodies becoming asymmetrical.

4. **Common Names and Scientific Names**: The question provides options for what Pila might be. We need to evaluate these options:
- **Temple Shell**: This is not correct as the scientific name for temple shell is Turbinilla.
- **Apple Snail**: This is correct. Pila is commonly referred to as the apple snail due to its appearance.
- **Pond Snail**: This is incorrect as the pond snail is scientifically known as Limnea.
- **Option B and C**: Since only option B (Apple Snail) is correct, this option is also incorrect.

5. **Conclusion**: Based on the classification and characteristics discussed, the correct answer to the question "Pila is" is that Pila is an apple snail.

### Final Answer:
Pila is an apple snail.