Bamboo is

Options

A. Culm
B. Bulb
C. Runner
D. Twiner

Answer

**Step-by-Step Solution:**

1. **Understanding the Options**: The question asks about the classification of bamboo, and we have four options:
- Calm
- Bulb
- Runner
- Twinner

2. **Analyzing the Twinner Option**:
- Twinners are plants whose stems twist around a support.
- They do not have special organs for attachment.
- Since bamboo does not twist around anything, this option is incorrect.

3. **Analyzing the Runner Option**:
- Runners are stems that grow horizontally along the ground, developing roots at the nodes and leaves above.
- Bamboo does not grow in this manner, so this option is also incorrect.

4. **Analyzing the Bulb Option**:
- Bulbs are underground stems that are reduced and surrounded by fleshy, scaly leaves, with roots developing from the base.
- Bamboo does not fit this description as it is not a reduced stem, making this option incorrect as well.

5. **Analyzing the Culm Option**:
- The term "culm" refers to the stem of grasses, which includes bamboo.
- Bamboo has solid nodes and hollow internodes, fitting the definition of a culm.

6. **Conclusion**:
- Based on the analysis, the correct classification for bamboo is "culm".

**Final Answer**: Bamboo is a culm.

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