Component of oral pills is

Options

A. Progesterone
B. Oxytocin
C. Relaxin
D. None of these

Answer

To answer the question regarding the components of oral pills, we will analyze the options provided and identify the correct component.

### Step-by-Step Solution:

1. **Understanding Oral Contraceptive Pills**: Oral contraceptive pills, commonly known as birth control pills, are used to prevent pregnancy. They primarily contain hormones that regulate the reproductive system.

2. **Identifying the Components**: The question provides four options:
- A) Progesterone
- B) Oxytocin
- C) Relaxin
- D) None of these

3. **Analyzing Each Option**:
- **Progesterone**: This hormone is commonly found in oral contraceptive pills. It can be used alone or in combination with estrogen to prevent ovulation, thicken cervical mucus, and inhibit sperm motility.
- **Oxytocin**: This hormone is known as the "birth hormone" and is primarily involved in childbirth and lactation. It is not a component of oral contraceptive pills.
- **Relaxin**: This hormone plays a role in pregnancy and childbirth but is not used in oral contraceptive pills.
- **None of these**: This option would imply that none of the listed hormones are components of oral pills, which is incorrect since progesterone is indeed a component.

4. **Conclusion**: Based on the analysis, the correct answer is **A) Progesterone**. It is a key component of many oral contraceptive pills, either alone or in combination with estrogen.

### Final Answer:
The component of oral pills is **Progesterone**.