Male accessory glands include

Options

A. Paired seminal vesicles
B. A prostate gland
C. Paired bulbourethral gland
D. All of these

Explanation

### Step-by-Step Solution:

1. **Identify the Question**: The question asks about the male accessory glands.

2. **List the Options**: The options provided are:
- Paired seminal vesicles
- Prostate gland
- Paired bulbourethral gland
- All of these

3. **Define Male Accessory Glands**: Male accessory glands are glands that contribute to the production of semen. They include:
- **Seminal Vesicles**: These are paired glands that produce about 60% of the fluid in semen.
- **Prostate Gland**: This gland contributes to the remaining 40% of the fluid in semen.
- **Bulbourethral Glands (Cowper's glands)**: These are also paired glands that produce a pre-ejaculate fluid that helps in lubrication and neutralizing acidity in the urethra.

4. **Evaluate Each Option**:
- **Paired Seminal Vesicles**: Yes, they are male accessory glands.
- **Prostate Gland**: Yes, it is also a male accessory gland.
- **Paired Bulbourethral Gland**: Yes, they are included as well.

5. **Conclusion**: Since all the listed glands (seminal vesicles, prostate gland, and bulbourethral glands) are male accessory glands, the correct answer is "All of these".

### Final Answer:
**All of these** (Option 4) is the correct answer.

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