Match column I with column II and select the correct option from the gives codes.
`{:(A."Cartilaginous fishes",(i)"Usually external fertilisation"),(B."Bony fishes",(ii)"Internal fertilisation"),(,(iii)"Mostly oviparous"),(,(iv)"Mostly viviparous"),(,(v)"Direct development"):}`

Options

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

Answer

To solve the matching question, we need to pair the items in Column I with the correct characteristics in Column II based on the information provided about cartilaginous fishes and bony fishes.

### Step-by-Step Solution:

1. **Identify Cartilaginous Fishes (A)**:
- Cartilaginous fishes have a skeleton made of cartilage.
- They typically undergo **internal fertilization**.
- They are mostly **viviparous** (giving birth to live young).
- Therefore, we can match:
- A → (ii) Internal fertilization
- A → (iv) Mostly viviparous

2. **Identify Bony Fishes (B)**:
- Bony fishes have a skeleton made of bones.
- They usually undergo **external fertilization**.
- They are mostly **oviparous** (laying eggs).
- They also exhibit **direct development**.
- Therefore, we can match:
- B → (i) Usually external fertilization
- B → (iii) Mostly oviparous
- B → (v) Direct development

3. **Compile the Matches**:
- For Cartilaginous Fishes (A):
- (ii) Internal fertilization
- (iv) Mostly viviparous
- For Bony Fishes (B):
- (i) Usually external fertilization
- (iii) Mostly oviparous
- (v) Direct development

4. **Final Matching**:
- A matches with (ii) and (iv).
- B matches with (i), (iii), and (v).

### Summary of Matches:
- A → (ii) Internal fertilization
- A → (iv) Mostly viviparous
- B → (i) Usually external fertilization
- B → (iii) Mostly oviparous
- B → (v) Direct development

### Codes:
- The correct option code for the matches would be:
- A: (ii), (iv)
- B: (i), (iii), (v)