Which accessory genital gland occurs only in male mammal ?

Options

A. Bartholin's gland
B. Perineal gland
C. Prostate gland
D. All of the above

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks for an accessory genital gland that is found only in male mammals. Accessory glands are those that assist in the reproductive process but are not directly involved in the production of gametes.

2. **Identify the Options**: The options provided are:
- Option 1: Bartholene's gland
- Option 2: Perineal gland
- Option 3: Prostate gland
- Option 4: All of the above

3. **Analyze Each Option**:
- **Bartholene's gland**: This gland is known to be present in females and is involved in lubrication during reproduction. Therefore, it cannot be the correct answer.
- **Perineal gland**: This gland does not have a significant role in male reproduction and is not classified as a genital accessory gland. Thus, this option is also incorrect.
- **Prostate gland**: This gland is specifically found in male mammals. It is located just below the bladder and plays a crucial role in nourishing and transporting sperm. It is involved in the reproductive process, making it the likely correct answer.

4. **Conclusion**: Based on the analysis, the only accessory genital gland that occurs solely in male mammals is the **prostate gland**.

5. **Final Answer**: The correct answer is **Option 3: Prostate gland**.

---