Lymphocytes that assist in the regulation and coordination of the immune response are

Options

A. B cells
B. NK and B cells
C. helper T cells
D. plasma cells

Answer

To answer the question regarding which lymphocytes assist in the regulation and coordination of the immune response, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Type of Lymphocytes**: The question specifically asks about lymphocytes that play a role in regulating and coordinating the immune response.

2. **Focus on T Lymphocytes**: Among the various types of lymphocytes, T lymphocytes (also known as T cells) are crucial for immune regulation.

3. **Differentiate Types of T Cells**: Within T lymphocytes, there are different types, including Helper T cells (CD4+ T cells) and Cytotoxic T cells (CD8+ T cells). Helper T cells are particularly important for coordinating the immune response.

4. **Role of Helper T Cells**: Helper T cells assist in the immune response by:
- Activating B cells to produce antibodies.
- Stimulating cytotoxic T cells to kill infected cells.
- Producing signaling molecules called lymphokines that help regulate the immune response.

5. **Conclusion**: Therefore, the lymphocytes that assist in the regulation and coordination of the immune response are the Helper T cells.

### Final Answer:
The lymphocytes that assist in the regulation and coordination of the immune response are **Helper T cells**.

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