Lutein cells are found in

Options

A. Primary follicle
B. Corpus albicans
C. Corpus luteum
D. All

Answer

### Step-by-Step Solution:

1. **Understanding Lutein Cells**: Lutein cells are specialized cells that are involved in the reproductive process, particularly in the female reproductive system.

2. **Identifying the Options**: The question provides three options:
- Primary follicle
- Corpus albicans
- Corpus luteum

3. **Analyzing Each Option**:
- **Primary Follicle**: This is an early stage of follicle development in the ovary, which does not contain lutein cells.
- **Corpus Albicans**: This is the scar tissue that forms after the regression of the corpus luteum when fertilization does not occur. It does not contain lutein cells.
- **Corpus Luteum**: This structure forms after ovulation from the remnants of the Graafian follicle. It is responsible for producing hormones such as progesterone and estrogen and contains lutein cells, which are derived from the theca cells of the follicle.

4. **Conclusion**: Since lutein cells are specifically associated with the corpus luteum, the correct answer is **Corpus Luteum**.

### Final Answer:
Lutein cells are found in **Corpus Luteum**.

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