The characters of gymnosperms are :–

Options

A. Seeds are naked
B. Fruits are absent
C. True carpel absent
D. All

Answer

### Step-by-Step Solution:

1. **Definition of Gymnosperms**: Gymnosperms are a group of seed-producing plants that do not form flowers or fruits. They are characterized by having naked seeds, which means their seeds are not enclosed within an ovary.

2. **Naked Seeds**: The term "naked seeds" refers to the fact that the seeds of gymnosperms are exposed on the surface of reproductive structures, such as cones, rather than being enclosed in a fruit. This is a key characteristic that distinguishes them from angiosperms (flowering plants).

3. **Absence of Flowers**: Gymnosperms do not produce flowers. Instead, they reproduce through cones, which contain the reproductive organs. This lack of flowers is another defining feature of gymnosperms.

4. **Absence of Fruits**: Since gymnosperms do not produce flowers, they also do not produce fruits. Fruits are typically formed from the ovary of a flower after fertilization, so their absence is consistent with the absence of flowers.

5. **True Carpels**: Gymnosperms lack true carpels, which are the structures that form the ovary in flowering plants. This absence further emphasizes the differences between gymnosperms and angiosperms.

6. **Pollination Mechanism**: Gymnosperms primarily rely on wind for pollination, a process known as anemophily. This is different from many angiosperms, which may use various methods of pollination, including insects.

7. **Conclusion**: Based on the characteristics discussed, we conclude that gymnosperms have naked seeds, do not produce flowers or fruits, and lack true carpels.

### Final Answer:
The characters of gymnosperms are:
- Seeds are naked.
- Fruits are absent.
- True carpels are absent.