Match the locomotor given under Column - I with the group listed under Column - II and select the correct option from the codes given below .
`{:(Column -I ("Locomotor organs"),Column-II ("Group")),((a)"Pseudopotia",(i) "Mollusca"),((b)"Comb plates ",(ii) "Chondrichthyes"),((c )"Foot",(iii)"Protozoa"),((d)"Fins",(iv)"Ctenophora"):}`

Options

A. `{:((a)(b)(c )(d)),((iii)(i)(iv)(ii)):}`
B. `{:((a)(b)(c )(d)),((i)(iii)(iv)(i)):}`
C. `{:((a)(b)(c )(d)),((iv)(iii)(ii)(i)):}`
D. `{:((a)(b)(c )(d)),((iii)(iv)(i)(ii)):}`

Answer

To solve the question of matching locomotor organs from Column-I with the corresponding groups in Column-II, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Locomotor Organ for Each Entry in Column-I:**
- **(a) Pseudopodia**: This is a temporary protrusion of the cytoplasm used for locomotion and feeding, primarily found in **Protozoa**.
- **(b) Comb plates**: These are structures used for locomotion in **Ctenophora** (commonly known as comb jellies).
- **(c) Foot**: The foot is a muscular structure used for locomotion in **Mollusca** (such as snails and clams).
- **(d) Fins**: Fins are the primary locomotor organs in **Chondrichthyes** (which includes sharks and rays).

2. **Match Each Locomotor Organ with the Correct Group:**
- (a) Pseudopodia → (iii) Protozoa
- (b) Comb plates → (iv) Ctenophora
- (c) Foot → (i) Mollusca
- (d) Fins → (ii) Chondrichthyes

3. **Compile the Matches:**
- A → iii
- B → iv
- C → i
- D → ii

4. **Select the Correct Option from the Given Codes:**
- Now, we need to find the option that matches these pairs:
- A (Pseudopodia) matches with (iii) Protozoa
- B (Comb plates) matches with (iv) Ctenophora
- C (Foot) matches with (i) Mollusca
- D (Fins) matches with (ii) Chondrichthyes

5. **Evaluate the Options:**
- The correct matching is:
- A → iii
- B → iv
- C → i
- D → ii
- This corresponds to **Option 4**.

### Final Answer:
The correct option is **Option 4**.