Offset is one Internode long runner and its each node bears' rosette of leaves and a tuft of roots. It is found in aquatic plants like -

Options

A. Hydrilla
B. Pistia
C. Elchhomia
D. Both b and c

Answer

To answer the question regarding offsets in aquatic plants, we can break down the information step by step.

### Step-by-Step Solution:

1. **Definition of Offset**:
- An offset is a type of vegetative reproduction where a short lateral shoot develops from the base of a plant. It consists of one internode and typically bears a rosette of leaves and a tuft of roots.

2. **Characteristics of Offset**:
- Each node of the offset produces a rosette of leaves.
- Each node also develops a tuft of roots, which helps in anchoring the plant in the aquatic environment.

3. **Aquatic Plants with Offsets**:
- Offsets are commonly found in certain aquatic plants. The question specifically mentions examples of such plants.
- The plants that exhibit this characteristic include:
- **Hydrilla**: A submerged aquatic plant known for its rapid growth and ability to form dense mats.
- **Pistia**: Also known as water lettuce, it floats on the surface of water and has rosette-shaped leaves.
- **Eichhornia**: Commonly known as water hyacinth, it has beautiful flowers and can also form offsets.

4. **Conclusion**:
- Therefore, offsets are found in aquatic plants like Hydrilla, Pistia, and Eichhornia.

### Final Answer:
Offsets are found in aquatic plants like Hydrilla, Pistia, and Eichhornia.

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