Main function of Heamoglobin is

Options

A. Transport of `CO_(2)`
B. Transport of `O_(2)`
C. Transport of `N_(2)`
D. All of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Hemoglobin**: Hemoglobin is a protein found in red blood cells (RBCs). It is a vital component of the blood that plays a crucial role in respiration.

2. **Location**: Hemoglobin is primarily located in red blood cells, which are responsible for carrying oxygen throughout the body.

3. **Function of Hemoglobin**: The main function of hemoglobin is to bind with oxygen molecules. This binding occurs in the lungs, where oxygen is abundant.

4. **Oxygen Transport**: Once hemoglobin binds with oxygen, it transports this oxygen from the lungs to various tissues and organs in the body that require oxygen for metabolic processes.

5. **Conclusion**: Therefore, the main function of hemoglobin is the transport of oxygen from the lungs to the tissues of the body.

**Final Answer**: The main function of hemoglobin is the transport of oxygen.

---