Tablets to prevent contraception contain

Options

A. progesterone
B. FSH
C. LH
D. Both (2) and (3)

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the composition of tablets that are used to prevent contraception.

2. **Identifying Contraceptive Pills**: Contraceptive pills are medications taken to prevent pregnancy. They are commonly referred to as birth control pills.

3. **Components of Contraceptive Pills**: Most contraceptive pills contain hormones that regulate the menstrual cycle. The primary hormones in these pills are estrogen and progesterone.

4. **Function of Hormones**:
- **Estrogen**: This hormone helps to regulate the menstrual cycle and is involved in the development of the female reproductive system.
- **Progesterone**: This hormone is crucial for maintaining the uterine lining and preventing ovulation.

5. **Mechanism of Action**: The combination of estrogen and progesterone in contraceptive pills works to prevent ovulation. If ovulation does not occur, there is no egg released for fertilization, thus preventing pregnancy.

6. **Evaluating the Options**:
- **Option 1: Progesterone** - This is a key component of contraceptive pills.
- **Option 2: FSH (Follicle Stimulating Hormone)** - This hormone stimulates the growth of ovarian follicles but is not present in contraceptive pills.
- **Option 3: LH (Luteinizing Hormone)** - This hormone triggers ovulation and is also not included in contraceptive pills.
- **Option 4: Both 2 and 3** - Since neither FSH nor LH is included in contraceptive pills, this option is incorrect.

7. **Conclusion**: The correct answer is that contraceptive tablets primarily contain **progesterone**.

### Final Answer:
Tablets to prevent contraception contain **progesterone**.

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