Select correctly matched pair/pairs :-
(a) Pteriodophyta – Lycopodium, Dryopteris
(b) Gymnosperms – Ephedra, Gnetum
(c) Bryophyta – Porella, Riccia

Options

A. Only a
B. Only a & c
C. Only b & c
D. All a, b & c

Answer

To determine which pairs are correctly matched, we need to analyze each group of plants mentioned in the question.

### Step-by-Step Solution:

1. **Identify the Groups**:
- The question lists three groups of plants: Pteridophyta, Gymnosperms, and Bryophyta.
- Each group is followed by two examples.

2. **Analyze Pteridophyta**:
- Pteridophyta includes ferns and their relatives.
- The examples given are Lycopodium and Dryopteris.
- Both Lycopodium (a clubmoss) and Dryopteris (a fern) are indeed classified under Pteridophyta.
- **Conclusion**: This pair is correctly matched.

3. **Analyze Gymnosperms**:
- Gymnosperms are seed-producing plants that do not form flowers or fruits.
- The examples given are Ephedra and Gnetum.
- Both Ephedra and Gnetum are classified as gymnosperms.
- **Conclusion**: This pair is also correctly matched.

4. **Analyze Bryophyta**:
- Bryophyta includes mosses and liverworts.
- The examples given are Porella and Riccia.
- Both Porella (a liverwort) and Riccia (also a liverwort) are classified under Bryophyta.
- **Conclusion**: This pair is correctly matched as well.

5. **Final Conclusion**:
- Since all three pairs (A, B, and C) are correctly matched, the answer is that all pairs are correct.

### Final Answer:
All pairs (A, B, and C) are correctly matched.

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