One of the following is not a method of contraception

Options

A. Tubectomy
B. Condoms
C. Pills of a combination of oxytocin and vasopressin
D. Lippes loop

Answer

To determine which of the following options is not a method of contraception, we can analyze each option provided:

### Step-by-Step Solution:

1. **Identify the Options**: The question provides several options, including tubectomy, condoms, and pills made of oxytocin and vasopressin.

2. **Analyze Tubectomy**:
- Tubectomy is a surgical procedure that involves cutting and tying the fallopian tubes in females.
- This procedure prevents the ovum from traveling to the uterus, thus preventing pregnancy.
- **Conclusion**: Tubectomy is a method of contraception.

3. **Analyze Condoms**:
- Condoms are a barrier method of contraception.
- They are worn over the penis during sexual intercourse to collect ejaculate, preventing sperm from reaching the egg.
- **Conclusion**: Condoms are a method of contraception.

4. **Analyze Pills Made of Oxytocin and Vasopressin**:
- Contraceptive pills typically contain hormones like progesterone and estrogen to prevent ovulation.
- Oxytocin is a hormone involved in childbirth and lactation, while vasopressin is an antidiuretic hormone that regulates water retention in the body.
- Neither oxytocin nor vasopressin serves a contraceptive purpose.
- **Conclusion**: Pills made of oxytocin and vasopressin are not a method of contraception.

5. **Final Conclusion**:
- Based on the analysis, the option that is not a method of contraception is the pills made of oxytocin and vasopressin.

### Answer:
The correct answer is the pills made of oxytocin and vasopressin, as they do not function as a method of contraception.

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