Digestion of antigens by phagocytes due to stimulation by antibodies is

Options

A. Opsonization
B. Immunization
C. T-cell immunization
D. B-cell immunization

Answer

To solve the question "Digestion of antigens by phagocytes due to stimulation by antibodies is," we need to analyze the options provided and understand the concepts related to the immune response.

### Step-by-Step Solution:

1. **Understanding the Question**: The question is asking about a specific process in the immune system where antigens are digested by phagocytes, which are a type of immune cell. This process is stimulated by antibodies.

2. **Reviewing the Options**:
- **Option A: Opsonization**: This process involves the coating of antigens (pathogens) with opsonins (which can be antibodies) to enhance their recognition and ingestion by phagocytes. This is directly related to the digestion of antigens by phagocytes.
- **Option B: B Cell Immunization**: This refers to the activation of B lymphocytes, which produce antibodies. It does not specifically involve the digestion of antigens by phagocytes.
- **Option C: T Cell Immunization**: Similar to B cell immunization, this involves T lymphocytes and does not directly relate to the digestion of antigens by phagocytes.
- **Option D: Immunization**: This generally refers to the process of making the body immune to a disease, often through vaccination. It does not specifically describe the digestion of antigens.

3. **Identifying the Correct Answer**: Among the options, **Option A: Opsonization** is the correct answer. Opsonization is the process where antibodies bind to antigens, marking them for destruction and facilitating their uptake and digestion by phagocytes.

4. **Conclusion**: Therefore, the digestion of antigens by phagocytes due to stimulation by antibodies is best described as **Opsonization**.

### Final Answer:
**Option A: Opsonization**