Vegetative reproduction by layering is found in

Options

A. Jasmine
B. Mango
C. Rose
D. All of these

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Vegetative Reproduction**: Vegetative reproduction is a type of asexual reproduction in plants where new individuals are produced from the vegetative parts of the plant, such as stems, roots, or leaves.

2. **Identifying Layering**: Layering is a specific method of vegetative reproduction where a branch of a plant is bent down to the ground and covered with soil, allowing it to root while still attached to the parent plant.

3. **Analyzing the Options**: The options provided are jasmine, mango, rose, and all of these. We need to determine which of these plants can reproduce through layering.

4. **Evaluating Each Option**:
- **Jasmine**: This plant is known to reproduce through layering effectively.
- **Mango**: While mangoes can reproduce sexually through seeds, they do not commonly reproduce through layering.
- **Rose**: Roses can also be propagated through layering, similar to jasmine.

5. **Conclusion**: Since both jasmine and rose can reproduce through layering, but mango does not primarily use this method, the correct answer to the question is "all of these" because both jasmine and rose are valid examples of plants that can reproduce through layering.

**Final Answer**: All of these (jasmine, mango, rose).

---