Interference in development and maturation of RBC is caused by

Options

A. Hg pollution
B. Pb pollution
C. S pollution
D. All of these

Answer

To solve the question regarding the interference in the development and maturation of red blood cells (RBCs), we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the factors that interfere with the development and maturation of RBCs. We need to evaluate the options provided: mercury pollution, lead pollution, sulfur pollution, and all of these.

2. **Analyzing Mercury Pollution**:
- Mercury pollution is known to have toxic effects on the body. It primarily affects the immune system and can lead to kidney toxicity. However, it does not specifically interfere with the development and maturation of RBCs.

3. **Analyzing Lead Pollution**:
- Lead pollution is a significant concern in environmental health. It is known to interfere with the development of RBCs. Lead exposure can lead to various health issues, including anemia, as it disrupts the synthesis of hemoglobin and affects the bone marrow where RBCs are produced. It can also impact brain development.

4. **Analyzing Sulfur Pollution**:
- Sulfur pollution primarily causes respiratory issues such as coughing and asthma. It does not have a direct impact on the development or maturation of RBCs.

5. **Conclusion**:
- After analyzing all the options, it is clear that lead pollution is the main cause of interference in the development and maturation of RBCs. Therefore, the correct answer to the question is **lead pollution**.

### Final Answer:
The interference in the development and maturation of RBC is caused by **lead pollution**.

---