Select the correct matching :
`{:(,"Column I",,"Column II"),((A),"Alternate",1.,"China rosa , mustard,"),((B),"Whorled",2.,"Alstonia"),((C),"Opposite",3.,"Calotropis and guava"):}`

Options

A. A - 1 , B - 2 , C - 3
B. A - 3, B - 2 , C -1
C. A - 3 , B - 1 , C - 2
D. A - 3 , B - 2 , C - 1

Answer

To solve the question, we need to match the types of phyllotaxy (arrangement of leaves on a stem) from Column I with their corresponding examples from Column II.

### Step-by-Step Solution:

1. **Understand Phyllotaxy**:
- Phyllotaxy refers to the arrangement of leaves on a plant stem. There are three main types: alternate, whorled, and opposite.

2. **Analyze Column I**:
- A: Alternate
- B: Whorled
- C: Opposite

3. **Analyze Column II**:
- 1: China rose, mustard
- 2: Alstonia
- 3: Calotropis and guava

4. **Match 'A' (Alternate)**:
- In alternate phyllotaxy, a single leaf arises at each node in an alternating pattern.
- Examples: China rose and mustard are known to exhibit alternate phyllotaxy.
- **Match**: A → 1 (Alternate → China rose, mustard)

5. **Match 'B' (Whorled)**:
- In whorled phyllotaxy, more than two leaves arise at a single node.
- Example: Alstonia is known for having whorled leaves.
- **Match**: B → 2 (Whorled → Alstonia)

6. **Match 'C' (Opposite)**:
- In opposite phyllotaxy, a pair of leaves arises at each node, lying opposite to each other.
- Examples: Calotropis and guava are known for opposite phyllotaxy.
- **Match**: C → 3 (Opposite → Calotropis and guava)

7. **Final Matching**:
- A → 1 (China rose, mustard)
- B → 2 (Alstonia)
- C → 3 (Calotropis and guava)

8. **Conclusion**:
- The correct matching is:
- A - 1
- B - 2
- C - 3
- Therefore, the correct option is the first one.