Match column `I` with column `II` and select the correct option form the given codes.
`{:(,"Column I",,"Column II"),("A.","Amphibia",("i"),"Air bladder"),("B.","Mammals",("ii"),"Cartilaginous notochord"),("C.","Chondrichthyes",("iii"),"Mammary glands"),("D.","Osteichthyes",("iv"),"Pneumatic bones"),("E.","Cyclostomata",("v"),"Dual habitat"),("F.","Aves",("vi"),"Sucking and circular mouth without jaws"):}`

Options

A. A-(i),B-(iii),C-(iv),D-(v),E-(ii),F-(vi)
B. A-(ii),B-(v),C-(iv),D-(vi),E-(iii),F-(i)
C. A-(v),B-(iii),C-(ii),D-(i),E-(vi),F-(iv)
D. A-(vi),B-(ii),C-(iii),D-(i),E-(iv),F-(v)

Answer

To solve the matching question between Column I and Column II, we will analyze each item in Column I and find the correct corresponding feature from Column II.

### Step-by-Step Solution:

1. **Amphibia (A)**:
- Amphibians are known for their **dual habitat**, meaning they can live both in water and on land.
- **Match**: A → (v) Dual habitat.

2. **Mammals (B)**:
- Mammals are characterized by the presence of **mammary glands**, which are used to feed their young.
- **Match**: B → (iii) Mammary glands.

3. **Chondrichthyes (C)**:
- This class includes cartilaginous fish, which have a **cartilaginous notochord** instead of a bony spine.
- **Match**: C → (ii) Cartilaginous notochord.

4. **Osteichthyes (D)**:
- Osteichthyes, or bony fish, possess an **air bladder** that helps them maintain buoyancy in water.
- **Match**: D → (i) Air bladder.

5. **Cyclostomata (E)**:
- Cyclostomata are characterized by their **sucking and circular mouth without jaws**.
- **Match**: E → (vi) Sucking and circular mouth without jaws.

6. **Aves (F)**:
- Birds (Aves) have **pneumatic bones**, which are lightweight bones that help them fly.
- **Match**: F → (iv) Pneumatic bones.

### Final Matches:
- A → (v) Dual habitat
- B → (iii) Mammary glands
- C → (ii) Cartilaginous notochord
- D → (i) Air bladder
- E → (vi) Sucking and circular mouth without jaws
- F → (iv) Pneumatic bones

### Conclusion:
The correct option from the given codes is:
- A → v
- B → iii
- C → ii
- D → i
- E → vi
- F → iv