[A]: During ovarian cycle follicles are con- trolled by gonadotropic hormones, follicle stimulating hormone (FSH) and luteinizing hormone (LH).
[R]: During ovarian cycle follicles undergo maturation, contain a secondary oocyte and produce female sex hormones.

Options

A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true and R is false
D. If both A and R are false

Answer

To answer the assertion and reason question regarding the ovarian cycle, we can break down the information into a step-by-step solution.

### Step-by-Step Solution:

1. **Understanding the Ovarian Cycle**:
- The ovarian cycle consists of a series of events that occur in the ovaries, leading to the maturation of follicles and the release of an egg (ovulation).

2. **Role of Gonadotropic Hormones**:
- Two key hormones, Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH), are produced by the anterior pituitary gland and play crucial roles in regulating the ovarian cycle.
- FSH is primarily responsible for stimulating the growth and maturation of ovarian follicles.
- LH triggers ovulation, which is the release of the mature egg from the dominant follicle.

3. **Follicle Development**:
- As the follicles develop under the influence of FSH, they contain a secondary oocyte, which is the stage of the egg just before ovulation.
- The developing follicles also produce female sex hormones, primarily estrogen, which is crucial for the regulation of the menstrual cycle and preparation of the uterus for potential implantation.

4. **Hormonal Interactions**:
- After ovulation, the remaining follicle transforms into the corpus luteum, which secretes progesterone. This hormone is vital for maintaining the uterine lining in case of fertilization.
- The interplay between FSH, LH, estrogen, and progesterone ensures the proper progression of the ovarian cycle and prepares the female body for reproduction.

5. **Conclusion**:
- Both the assertion (A) and reason (R) are correct. The assertion states that follicles are controlled by FSH and LH during the ovarian cycle, while the reason explains that these follicles mature, contain a secondary oocyte, and produce female sex hormones. Thus, the reason is a correct explanation of the assertion.

### Final Answer:
Both A and R are correct, and R is the correct explanation of A.

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