Iodine can be obtained from

Options

A. Laminaria
B. Porphyra
C. Chlorella
D. Polysiphonia.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks from which organism iodine can be obtained. This requires knowledge of various organisms and their iodine content.

2. **Reviewing the Options**: The options provided are:
- Laminaria
- Porphyra
- Chlorella
- Polysiphonia

3. **Identifying the Correct Organism**:
- **Laminaria**: This is a type of brown seaweed that is known to be a rich source of iodine. It is commonly found in coastal regions, particularly in Japan.
- **Porphyra**: This is another type of seaweed, often used in sushi, but it is not primarily known for iodine.
- **Chlorella**: This is a type of green algae, known for its nutritional benefits but not specifically for iodine.
- **Polysiphonia**: This is a red algae, which also does not have a significant iodine content.

4. **Conclusion**: Based on the information, the organism from which iodine can be obtained is **Laminaria**.

5. **Final Answer**: The correct answer is **Laminaria**.

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