Lanticles are found in :-

Options

A. All plants
B. Woody trees
C. Monocots
D. All vascular plants

Answer

### Step-by-Step Solution:

1. **Understanding Lenticles**: Lenticles are small, lens-shaped structures found on the surface of certain plant stems and bark. They are involved in gas exchange.

2. **Identifying Plant Types**: To determine where lenticles are found, we need to consider the types of plants. The options given are:
- All plants
- Woody trees
- Monocots
- All vascular plants

3. **Analyzing Each Option**:
- **All Plants**: This option is incorrect because not all plants have lenticles. Many herbaceous plants do not possess them.
- **Woody Trees**: This option is correct. Lenticles are commonly found on the bark of woody trees, which undergo secondary growth.
- **Monocots**: This is incorrect. Monocots typically do not undergo secondary growth and therefore do not have lenticles.
- **All Vascular Plants**: This option is also incorrect. While vascular plants include a wide range of plants, not all of them have lenticles, especially those that do not undergo secondary growth.

4. **Conclusion**: Based on the analysis, the correct answer is that lenticles are found in **woody trees**.