In gymnosperms ovule

Options

A. is not enclosed before fertilization but enclosed after fertilization
B. Remains enclosed before fertilization only
C. is not enclosed by any ovary wall and remains exposed, both before and after fertilization
D. is never formed

Answer

### Step-by-Step Solution

1. **Understanding Gymnosperms**: Gymnosperms are a group of seed-producing plants that include conifers, cycads, Ginkgo, and gnetophytes. The term "Gymnosperm" means "naked seeds," indicating that their seeds are not enclosed in an ovary.

2. **Ovule Characteristics**: In Gymnosperms, ovules are not enclosed by any ovary wall. This means that the ovules remain exposed to the environment both before and after fertilization.

3. **Fertilization Process**: During fertilization in Gymnosperms, the ovules are fertilized while they are still exposed. After fertilization, the ovules develop into seeds, which also remain exposed, as there is no ovary to enclose them.

4. **Conclusion on Options**: Given the options:
- Not enclosed before fertilization but enclosed after fertilization: This is incorrect.
- Enclosed before fertilization only: This is incorrect.
- Not enclosed by any ovary wall and remain exposed both before and after fertilization: This is correct.
- Never formed: This is incorrect.

Therefore, the correct answer is that in Gymnosperms, ovules are not enclosed by any ovary wall and remain exposed both before and after fertilization.