Antibodies produced by B-cells are

Options

A. Beta globulins
B. Alpha globulins
C. Serum albumins
D. Gamma globulins

Answer

**Step-by-Step Solution:**

1. **Identify the Source of Antibodies**: The question asks about antibodies produced by B-cells. B-cells are also known as B lymphocytes.

2. **Understand the Function of B-cells**: The primary function of B-cells is to produce antibodies, which are also referred to as immunoglobulins. These molecules play a crucial role in the immune response.

3. **Know the Types of Immunoglobulins**: There are five main types of immunoglobulins produced by B-cells:
- IgA (Immunoglobulin A)
- IgG (Immunoglobulin G)
- IgE (Immunoglobulin E)
- IgD (Immunoglobulin D)
- IgM (Immunoglobulin M)

4. **Analyze the Options Given**: The options provided in the question are:
- Beta globulins
- Alpha globulins
- Serum albumin
- Gamma globulin

5. **Determine the Correct Answer**: Among the options, gamma globulin is the correct answer. Gamma globulins are a class of globulins that include antibodies. The other options (beta globulins, alpha globulins, and serum albumin) do not specifically refer to antibodies.

6. **Conclude the Answer**: Therefore, the antibodies produced by B-cells are classified as gamma globulins.

**Final Answer**: Gamma globulin

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