Avicennia, Rhizophora and Atriplex are

Options

A. Xerophytes
B. Halophytes
C. Hydrophytes
D. Mesophytes.

Answer

To answer the question regarding Avicennia, Rhizophora, and Atriplex, we will analyze the characteristics of these plants and the options provided.

### Step-by-Step Solution:

1. **Understand the Plant Types**:
- We need to identify what Avicennia, Rhizophora, and Atriplex are classified as.

2. **Review the Options**:
- The options given are:
- A) Xerophytes
- B) Halophytes
- C) Hydrophytes
- D) Mesophytes

3. **Define Xerophytes**:
- Xerophytes are plants that thrive in dry, desert-like conditions. Examples include cacti and acacia.
- **Conclusion**: Avicennia, Rhizophora, and Atriplex do not belong to this category.

4. **Define Halophytes**:
- Halophytes are plants that grow in environments with high salinity, such as coastal areas or salt marshes. They are salt-tolerant plants.
- **Conclusion**: Avicennia (mangroves), Rhizophora (mangroves), and Atriplex (saltbush) are known to be halophytes.

5. **Define Hydrophytes**:
- Hydrophytes are plants that live in water or very moist conditions. Examples include water lilies and lotus.
- **Conclusion**: These plants do not fit the description of Avicennia, Rhizophora, and Atriplex.

6. **Define Mesophytes**:
- Mesophytes are plants that require moderate amounts of water. Examples include rose and mango.
- **Conclusion**: Avicennia, Rhizophora, and Atriplex do not belong to this category either.

7. **Final Answer**:
- Since Avicennia, Rhizophora, and Atriplex are salt-tolerant plants that thrive in saline environments, the correct classification is **Halophytes** (Option B).