The hormone which help in the production of lymphocytes and antibodies is

Options

A. Thymus
B. Pineal
C. Adrenal
D. Thyroid

Explanation

To solve the question regarding which hormone helps in the production of lymphocytes and antibodies, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify which gland releases hormones that aid in the production of lymphocytes and antibodies.

2. **Identify the Types of Lymphocytes**: There are two main types of lymphocytes involved in the immune response:
- B lymphocytes (B cells) which produce antibodies.
- T lymphocytes (T cells) which assist B cells in producing antibodies.

3. **Link to the Glands**: We need to determine which gland is responsible for the production of these lymphocytes:
- **Thymus Gland**: This gland is crucial for the development of T lymphocytes and also plays a role in the maturation of B lymphocytes.
- **Pineal Gland**: This gland primarily secretes melatonin, which regulates sleep cycles and is not involved in immunity.
- **Adrenal Gland**: This gland produces hormones like adrenaline, which are involved in stress responses but not directly in lymphocyte production.
- **Thyroid Gland**: This gland produces thyroxine, which regulates metabolism, not immunity.

4. **Identify the Correct Answer**: The thymus gland releases the hormone thymosine, which is essential for the development and function of lymphocytes, particularly T cells. Therefore, the correct answer is the thymus gland.

5. **Final Answer**: The hormone which helps in the production of lymphocytes and antibodies is associated with the **thymus gland**.