Which WBC are the most abundant and least in number respectively ?

Options

A. Monocyte and lymphocyte
B. Neutrophils and basophils
C. Acidophils and monocyte
D. Basophils and neutrophils

Answer

To answer the question regarding which white blood cells (WBCs) are the most abundant and least in number, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of WBCs**:
- White blood cells are classified into different types: neutrophils, lymphocytes, monocytes, eosinophils, and basophils.

2. **Identify the Most Abundant WBC**:
- Among the various types of WBCs, neutrophils are known to be the most abundant. They typically make up about 50-70% of the total white blood cell count in a healthy individual.

3. **Identify the Least Abundant WBC**:
- Basophils are the least abundant type of WBCs, constituting about 0.5-1% of the total white blood cell count.

4. **Conclusion**:
- Therefore, the most abundant WBC is neutrophils, and the least abundant WBC is basophils.

### Final Answer:
The most abundant WBC is **neutrophils**, and the least abundant WBC is **basophils**.

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