Which of the following is not a part of cell mediated immunity?

Options

A. B- cell
B. Basophils
C. Cytotoxic-T-cell
D. Both (1) and (2)

Answer

To solve the question "Which of the following is not a part of cell-mediated immunity?", we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand Cell-Mediated Immunity**:
- Cell-mediated immunity is a type of immune response that does not involve antibodies but rather the activation of immune cells. Key players in this process include T cells (such as cytotoxic T cells and helper T cells).

2. **Evaluate the Options**:
- **Option 1: B cell**: B cells are primarily involved in humoral immunity (antibody production) but also play a role in cell-mediated immunity through their interactions with T cells. However, they are not the main players in cell-mediated immunity.
- **Option 2: Basophils**: Basophils are a type of white blood cell that play a role in allergic reactions and inflammation but are not involved in cell-mediated immunity.
- **Option 3: Cytotoxic T cell**: Cytotoxic T cells are a crucial part of cell-mediated immunity, directly killing infected or cancerous cells.
- **Option 4: Both 1 and 2**: This option suggests that both B cells and basophils are not part of cell-mediated immunity. However, while basophils are indeed not part of it, B cells do have a role.

3. **Identify the Correct Answer**:
- From the analysis, basophils (Option 2) are not part of cell-mediated immunity. Therefore, the correct answer to the question is **Option 2: Basophils**.

### Final Answer:
The correct answer is **Basophils** (Option 2).