_________are one internodes long runners, usually found in rosette plants at the ground/water level.

Options

A. Trailers
B. Offsets
C. Stolons
D. Rhizomes

Explanation

To solve the question, we need to identify the term that describes "one internodes long runners, usually found in rosette plants at the ground/water level." Let's analyze the options provided one by one.

### Step-by-Step Solution:

1. **Understanding the Question**:
The question asks for a specific type of structure that is characterized as "one internodes long runners" and is typically found in rosette plants at ground or water level.

2. **Analyzing the Options**:
- **Trailers**: These are generally long, trailing stems but do not specifically refer to the one internode long runners found in rosette plants. Therefore, this option is incorrect.
- **Offsets**: Offsets are short lateral branches with short internodes that bear a rosette of leaves and roots. They are typically found in aquatic plants and originate from the leaf axil. This matches the description of being found at ground/water level and having a specific structure.
- **Stolons**: These are horizontal stems that grow along the ground but are not specifically described as one internode long runners. Thus, this option is also incorrect.
- **Rhizomes**: These are underground stems that grow horizontally and can produce new shoots and roots. However, they do not fit the description of being one internode long runners at ground/water level.

3. **Conclusion**:
After analyzing all the options, the correct answer is **Offsets**. They are indeed one internode long runners typically found in rosette plants at ground/water level.

### Final Answer:
**Offsets**