Which one of the following blood cells is involved in antibody production ?

Options

A. B-lymphocytes
B. T-lymphocytes
C. RBC
D. neutrophils

Explanation

To solve the question "Which one of the following blood cells is involved in antibody production?", we can follow these steps:

### Step 1: Understand the Options
The options provided are:
- A) B-lymphocyte
- B) T-lymphocyte
- C) RBC (Red Blood Cells)
- D) Neutrophils

### Step 2: Identify Functions of Each Cell Type
- **B-lymphocytes**: These cells are primarily responsible for producing antibodies. They recognize specific antigens and generate antibodies that target these antigens.
- **T-lymphocytes**: These cells play a role in cell-mediated immunity, helping to regulate immune responses and directly attacking infected cells.
- **RBC (Red Blood Cells)**: Their main function is to transport oxygen from the lungs to the body tissues and return carbon dioxide from the tissues back to the lungs.
- **Neutrophils**: These are a type of white blood cell that acts as phagocytes, engulfing and destroying foreign materials and pathogens.

### Step 3: Analyze the Question
The question specifically asks for the blood cell involved in antibody production. From our analysis, we see that B-lymphocytes are the only cells that produce antibodies.

### Step 4: Select the Correct Answer
Based on the functions we have identified, the correct answer is:
- **A) B-lymphocyte**

### Conclusion
The blood cell involved in antibody production is the B-lymphocyte.

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