Match the following column I with column II and choose the correct combination.
`{:(Column I,Column II),((a)"Earthworm",(i)"Gizzard"),((b)"Cockroach",(ii)"Caecum"),((c)"Frog",(iii)"Clitellum"),((d)"Rat",(iv)"Cloaca"):}`

Options

A. (a) - (i) , (b) - (ii) , (c) - (iv) ,(d) - (iii)
B. (a) -(iii). (b) - (i) , (c) - (iv) , (d) - (ii)
C. (a) - (ii) , (b) - (i) , (c) - (iii) , (d) - (iv)
D. (a) - (i) , (b) - (iii) ,(c) - (iv) , (d) - (ii)

Answer

To solve the matching question, we need to identify the correct pairings between the organisms in Column I and their corresponding anatomical features in Column II. Here’s a step-by-step breakdown:

### Step 1: Analyze Earthworm
- **Earthworm**: The key feature of the earthworm is the **Clitellum**. The clitellum is a thickened, glandular section of the body wall that is involved in reproduction by secreting a cocoon for fertilized eggs.
- **Match**: (a) "Earthworm" → (iii) "Clitellum"

### Step 2: Analyze Cockroach
- **Cockroach**: The cockroach has a specialized part of its digestive system called the **Gizzard**. The gizzard is responsible for grinding food, aided by its muscular walls and often contains small stones or grit.
- **Match**: (b) "Cockroach" → (i) "Gizzard"

### Step 3: Analyze Frog
- **Frog**: Frogs possess a structure known as the **Cloaca**. The cloaca is a common cavity that receives the intestinal, urinary, and genital tracts, serving as an exit for waste and reproductive materials.
- **Match**: (c) "Frog" → (iv) "Cloaca"

### Step 4: Analyze Rat
- **Rat**: In rats, the **Caecum** is present. The caecum is a pouch connected to the junction of the small and large intestines and plays a role in the absorption of nutrients and the fermentation of undigested material.
- **Match**: (d) "Rat" → (ii) "Caecum"

### Final Summary of Matches:
- (a) "Earthworm" → (iii) "Clitellum"
- (b) "Cockroach" → (i) "Gizzard"
- (c) "Frog" → (iv) "Cloaca"
- (d) "Rat" → (ii) "Caecum"

### Correct Combination:
The correct combination is:
- (a) → (iii)
- (b) → (i)
- (c) → (iv)
- (d) → (ii)