Pearls are obtained from

Options

A. Sepia
B. Pinctada
C. Dentalium
D. Octopus

Explanation

**Step-by-Step Solution:**

1. **Identify the Source of Pearls**: Pearls are formed within certain marine organisms. The question asks where pearls are obtained from, so we need to determine which organism produces pearls.

2. **Understand the Classification**: Pearls are produced by members of the phylum Mollusca. Within this phylum, there is a specific class known as Bivalvia (or Pallicipoda), which includes organisms that have two shells.

3. **Identify the Correct Class**: The class that is primarily responsible for pearl production is called Pinctada. This class includes various species of oysters that can produce pearls.

4. **Evaluate the Options**: The options provided are:
- Sepia (cuttlefish)
- Pinctada (pearl oysters)
- Dentalium (tusk shells)
- Octopus

5. **Analyze Each Option**:
- **Sepia**: Incorrect, as cuttlefish do not produce pearls.
- **Pinctada**: Correct, as these are the pearl oysters that produce pearls.
- **Dentalium**: Incorrect, as tusk shells do not produce pearls.
- **Octopus**: Incorrect, as octopuses do not produce pearls.

6. **Conclusion**: The correct answer is Pinctada, as it is the organism responsible for the production of pearls.

**Final Answer**: Pearls are obtained from Pinctada.

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