Name the process in which roots are grown from the part of the stem that is covered with the soil and a new plant is originated.

Options

A. Grafting
B. Layering
C. Cutting
D. Both (a) and (b)

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of a process where roots grow from a part of the stem that is covered with soil, leading to the formation of a new plant.

2. **Identifying the Options**: The options provided are:
- Grafting
- Layering
- Cutting
- Both B and C

3. **Defining the Processes**:
- **Grafting**: This is a method where a part of one plant is attached to another plant so that they grow together. It does not involve roots growing from a stem covered with soil.
- **Layering**: In this process, a part of the stem is bent down to the ground, covered with soil, and allowed to root while still attached to the parent plant. This leads to the formation of a new plant.
- **Cutting**: This involves taking a part of the plant (like a stem or leaf) and placing it in the soil to grow roots, but it does not involve covering a stem with soil while still attached to the parent plant.

4. **Choosing the Correct Answer**: Based on the definitions, layering is the process that matches the description in the question. In layering, roots grow from the part of the stem that is covered with soil, and a new plant is formed.

5. **Final Answer**: The process in which roots grow from the part of the stem that is covered with soil, leading to the formation of a new plant, is called **layering**.

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