Hemp fibre is obtained from secondary pholem of stem of

Options

A. Linum
B. Boehmeria
C. Corchorus
D. Cannabis

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the source of hemp fiber, specifically which plant's secondary phloem is used to obtain it.

2. **Identifying Key Terms**:
- **Hemp Fiber**: A type of fiber known for its strength and durability.
- **Secondary Phloem**: The part of the plant's vascular system that transports nutrients and is formed after the primary growth phase.

3. **Reviewing the Options**: The options provided are:
- Linium
- Bohemeria
- Corcus
- Cannabis

4. **Understanding Phloem**: Phloem is responsible for the transport of food (sugars and nutrients) in plants. Secondary phloem is produced after the plant has matured and contributes to the structure of the stem.

5. **Identifying the Correct Plant**:
- **Cannabis sativa** is known to produce hemp fiber. It is specifically cultivated for its fiber, which is derived from the secondary phloem of its stem.
- The other options (Linium, Bohemeria, Corcus) do not produce hemp fiber.

6. **Conclusion**: Based on the information gathered, the correct answer to the question is **Cannabis** (option D).

### Final Answer:
Hemp fiber is obtained from the secondary phloem of the stem of **Cannabis sativa**.

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