Gymnosperms are `:`

Options

A. Annuals, biennials and perennials
B. Perennial shrubs and trees
C. Perenial trees only
D. Biennials, perennial shrubs and trees

Answer

**Step-by-Step Solution:**

1. **Understanding Gymnosperms**: Gymnosperms are a group of vascular plants that produce seeds that are not enclosed within an ovary (hence the term "naked seeds"). They are distinct from angiosperms, which are flowering plants.

2. **Classification of Plants**: Plants can be classified based on their life cycles into annual, biennial, and perennial:
- **Annual plants** complete their life cycle in one year.
- **Biennial plants** take two years to complete their life cycle, flowering in the second year.
- **Perennial plants** live for more than two years and can flower multiple times throughout their life.

3. **Characteristics of Gymnosperms**: Gymnosperms are non-flowering and are primarily perennial. They can be found in the form of trees and shrubs. They possess vascular tissues (xylem and phloem) which are essential for transporting water and nutrients.

4. **Analyzing Options**: The question provides several options regarding the classification of Gymnosperms:
- Option 1: Annual perennial
- Option 2: Perennial shrubs and trees
- Option 3: Perennial trees only
- Option 4: Biennial, perennial

Based on the characteristics of Gymnosperms, we can eliminate the options:
- Option 1 is incorrect as Gymnosperms are not annual.
- Option 3 is too restrictive as it only mentions trees and ignores shrubs.
- Option 4 is incorrect since Gymnosperms are not biennial.

5. **Conclusion**: The correct classification of Gymnosperms is "perennial shrubs and trees" (Option 2), as they can exist as both shrubs and trees and are perennial in nature.

**Final Answer**: Gymnosperms are perennial shrubs and trees.

---