Natural methods of birth control include?

Options

A. abstinence
B. coitus interruptus
C. lactational amenorrhoea
D. All of these

Answer

### Step-by-Step Solution:

1. **Understanding Natural Methods of Birth Control**:
- Natural methods of birth control are techniques that do not involve any artificial devices or hormonal interventions. They rely on understanding the female reproductive cycle and the timing of intercourse.

2. **Identifying Types of Natural Methods**:
- There are several recognized natural methods of birth control, including:
- **Abstinence**: This involves refraining from sexual intercourse, especially during the fertile window of the menstrual cycle.
- **Coitus Interruptus (Withdrawal Method)**: This method involves the male partner withdrawing before ejaculation to prevent sperm from entering the female reproductive tract.
- **Lactational Amenorrhea**: This refers to the natural infertility that occurs when a woman is exclusively breastfeeding. During this period, typically up to six months postpartum, the chances of ovulation and subsequent pregnancy are significantly reduced.

3. **Evaluating the Options**:
- Based on the definitions and explanations of the methods above, all three methods mentioned (abstinence, coitus interruptus, and lactational amenorrhea) are valid natural methods of birth control.

4. **Conclusion**:
- Therefore, the correct answer to the question "Natural methods of birth control include?" is **all of the above**.