Which of the following set belongs to granulocytes of the blood ?

Options

A. Eosinophils, basophils, neutrophils
B. Lymphocytes, monocytes and basophils
C. Basophils, monocytes and eosinophils
D. Basophils, lymphocytes and neutrophils

Answer

To determine which set belongs to the granulocytes of the blood, we need to understand the classification of white blood cells (WBCs) and identify which types fall under the category of granulocytes.

### Step-by-Step Solution:

1. **Understand Blood Composition**: Blood is a connective tissue that consists of a fluid matrix (plasma) and formed elements (cells). The formed elements include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets.

2. **Identify Types of White Blood Cells**: White blood cells are categorized into two main groups: granulocytes and agranulocytes.

3. **Define Granulocytes**: Granulocytes are a type of white blood cell characterized by the presence of granules in their cytoplasm. The three main types of granulocytes are:
- **Neutrophils**: These are the most abundant type of WBC and play a key role in fighting infections.
- **Eosinophils**: These cells are involved in combating parasitic infections and are also important in allergic reactions.
- **Basophils**: These are the least common type of granulocytes and are involved in inflammatory responses, releasing histamine.

4. **Identify Agranulocytes**: The two main types of agranulocytes are:
- **Lymphocytes**: These include B cells and T cells, which are crucial for the immune response.
- **Monocytes**: These cells differentiate into macrophages and dendritic cells and are involved in phagocytosis.

5. **Analyze the Given Options**: The question provides several sets of blood cells. We need to identify which set contains only granulocytes:
- **Option 1**: Eosinophils, Basophils, Neutrophils (This is correct as all are granulocytes)
- **Option 2**: Basophils, Monocytes, Eosinophils (This is incorrect as Monocytes are agranulocytes)
- **Option 3**: Basophils, Lymphocytes, Neutrophils (This is incorrect as Lymphocytes are agranulocytes)

6. **Conclusion**: The only set that belongs to granulocytes is the first option: **Eosinophils, Basophils, and Neutrophils**.

### Final Answer:
The correct set that belongs to granulocytes of the blood is **Eosinophils, Basophils, and Neutrophils**.