A trailer is that which is rooted at

Options

A. Only one point
B. Two points
C. More than two points
D. No points

Answer

To answer the question "A trailer is that which is rooted at," we need to analyze the characteristics of trailer plants and their growth patterns.

### Step-by-Step Solution:

1. **Definition of Trailer Plants**:
- Trailer plants are those that creep or trail along the ground. They do not have the ability to stand upright and typically have long, weak stems that spread out horizontally.

2. **Characteristics of Trailer Plants**:
- **Weak Stems**: The stems of trailer plants are long and weak, which allows them to spread out over the surface without standing tall.
- **Rooting at Nodes**: Trailer plants do not root at multiple points along their stem. Instead, they typically root at only one point.
- **Absence of Climbing Structures**: These plants do not have specialized structures (such as tendrils) that allow them to climb or attach to other surfaces.

3. **Rooting Behavior**:
- Trailer plants are characterized by rooting in the soil at a single point. This means that while they may spread out, they do not establish multiple rooting points along their stem.

4. **Examples of Trailer Plants**:
- An example of a trailer plant is Bacilla, which demonstrates the characteristics mentioned above.

5. **Conclusion**:
- Based on the characteristics of trailer plants, the correct answer to the question is that a trailer is rooted at "only one single point."

### Final Answer:
A trailer is that which is rooted at **only one single point**.

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