Which steroid is used for transformation ?

Options

A. cortisol
B. Cholesterol
C. Testosterone
D. Progesterone

Explanation

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks which steroid is used for transformation.

2. **Review the Options**: The options provided are cortisol, cholesterol, testosterone, and progesterone.

3. **Analyze Each Option**:
- **Cortisol**: This is a hormone released by the adrenal glands and is known as a stress hormone. It does not play a role in transformation.
- **Cholesterol**: This is a type of steroid that is a crucial component of animal cell membranes. It is involved in the process of transformation.
- **Testosterone**: This is a male hormone produced by Leydig cells and is not related to transformation.
- **Progesterone**: This hormone is involved in maintaining pregnancy and does not relate to transformation.

4. **Select the Correct Answer**: Based on the analysis, cholesterol is the steroid that is used for transformation.

5. **Conclusion**: The correct answer to the question is cholesterol.

---