Vascular bundles are derived from (originate from)

Options

A. Dermatogen
B. Procambium
C. Periderm
D. Periblem

Answer

### Step-by-Step Solution:

1. **Understanding Vascular Bundles**: Vascular bundles are structures in plants that contain xylem and phloem, which are responsible for the transport of water, nutrients, and food throughout the plant.

2. **Identifying the Origin of Vascular Bundles**: To determine where vascular bundles originate from, we need to look at the types of meristematic tissues involved in plant growth.

3. **Evaluating the Options**:
- **Dermatogen**: This is the outermost layer of the plant that gives rise to the epidermis. It does not contribute to vascular tissues.
- **Procambium**: This is a type of meristematic tissue that specifically gives rise to the primary vascular system, including xylem and phloem.
- **Periderm**: This is a protective tissue that replaces the epidermis in older stems and roots, but it does not form vascular bundles.
- **Periblem**: This is located between the dermatogen and procambium and primarily forms the cortex, not the vascular bundles.

4. **Conclusion**: The correct answer is **Procambium**, as it is the meristematic tissue responsible for the formation of vascular bundles.

### Final Answer:
Vascular bundles are derived from **Procambium**.