Simple tissues is/are

Options

A. Parenchyma
B. Collenchyma
C. Sclerenchyma
D. All

Answer

### Step-by-Step Solution:

1. **Understanding Plant Tissues**:
- Plant tissues are categorized into two main types: simple tissues and complex tissues.
- Simple tissues consist of a single type of cell, while complex tissues are made up of multiple types of cells working together.

2. **Defining Simple Tissues**:
- Simple tissues are groups of similar cells that perform a specific function.
- These cells are usually similar in structure and origin.

3. **Types of Simple Tissues**:
- The main types of simple tissues include:
- **Parenchyma**: Involved in storage, photosynthesis, and tissue repair.
- **Collenchyma**: Provides support and flexibility to young stems and leaves.
- **Sclerenchyma**: Provides strength and support, often found in mature tissues.

4. **Analyzing the Options**:
- The question provides options: Parenchyma, Collenchyma, Sclerenchyma, and All.
- Since all these tissues are classified as simple tissues, they all fit the definition.

5. **Conclusion**:
- Therefore, the correct answer to the question "Simple tissues is/are" is "All," as all the listed options are types of simple tissues.