In which of the following method of contraception no medicines devices are used?

Options

A. (a) Lactational amenorrhea
B. (b) Coitus withdrawal
C. (c) Periodic abstinence
D. (d) All of the above

Answer

To solve the question regarding which method of contraception does not involve the use of medicines or devices, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a method of contraception that does not use any medicines or devices. This indicates we are looking for natural methods of contraception.

2. **Review the Options**: We need to analyze the given options to identify which ones are considered natural methods of contraception.

3. **Option A - Lactational Amenorrhea**:
- This method occurs postpartum when a mother is breastfeeding. During this time, the mother may not experience regular menstrual cycles, leading to temporary infertility.
- Since it relies on natural biological processes and does not involve any medicines or devices, this qualifies as a natural method of contraception.

4. **Option B - Coitus Withdrawal**:
- This method, also known as the withdrawal method, involves the male partner withdrawing before ejaculation to prevent sperm from entering the female's vagina.
- This method does not involve any devices or medications, making it another natural method of contraception.

5. **Option C - Periodic Abstinence**:
- This method involves avoiding sexual intercourse during the fertile window of a woman's menstrual cycle (typically days 10 to 17).
- Couples track the menstrual cycle to abstain from intercourse during ovulation, which is a natural approach and does not require any medicines or devices.

6. **Conclusion**: Since all three options (A, B, and C) are methods of natural contraception that do not involve medicines or devices, the correct answer is "All of the above."

### Final Answer:
All of the above methods (Lactational Amenorrhea, Coitus Withdrawal, and Periodic Abstinence) are natural methods of contraception that do not use medicines or devices.

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