The spirally colled, sensitive structure that provide support to weak plants are

Options

A. Offsets
B. Thorns
C. Tendris
D. Stoions

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a specific structure that is spirally coiled, sensitive, and provides support to weak plants.

2. **Identifying Key Features**: The key features mentioned are:
- Spirally coiled
- Sensitive
- Provides support to weak plants

3. **Visualizing the Structure**: Imagine a weak plant that cannot stand upright. To survive, it needs to cling to other structures for support. This is where the spirally coiled structure comes into play.

4. **Recognizing the Structure**: The structure that fits all these characteristics is known as a "tendril." Tendrils are specialized structures that can wrap around objects, providing support to the plant.

5. **Conclusion**: Based on the features and the function of the structure, the answer to the question is that the spirally coiled, sensitive structure that provides support to weak plants is called a "tendril."

**Final Answer**: Tendril

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