Between the bark and the wood in a woody stem, there is a layer of meristem called :

Options

A. zone of cell division
B. apical meristem
C. vascular cambium
D. cork cambium

Explanation

### Step-by-Step Solution:

1. **Understanding the Structure of a Woody Stem**:
- A woody stem consists of various layers, including the bark and wood. The bark is the outer layer, while the wood is the inner layer responsible for strength and nutrient conduction.

2. **Identifying the Bark and Wood**:
- The bark includes all tissues external to the vascular cambium, which is the layer of meristematic tissue. The wood, primarily made of secondary xylem, lies beneath the bark.

3. **Locating the Vascular Cambium**:
- Between the bark (which includes the secondary phloem) and the wood (secondary xylem), there exists a layer of meristematic tissue known as the vascular cambium.

4. **Function of the Vascular Cambium**:
- The vascular cambium is responsible for the production of secondary xylem (wood) and secondary phloem (part of the bark) through cell division.

5. **Final Answer**:
- Therefore, the layer of meristem located between the bark and the wood in a woody stem is called the **vascular cambium**.