Match the types of WBC listed under column `I` with the shape of nucleus given under column `II` and select the correct option from codes given below
`{:(,"Column I",,"Column II"),("A.","Neutrophils","(i)","Kidney-shaped"),("B.","Eosinophils","(ii)","S-shaped"),("C.","Basophils","(iii)","3 to 5 lobes"),("D.","Monocyte","(iv)","2 lobes"),(,,"(v)","Disc-shaped"):}`

Options

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

Answer

To solve the problem of matching the types of WBCs with the shapes of their nuclei, we will analyze each type of WBC listed in Column I and determine the corresponding shape from Column II.

### Step-by-Step Solution:

1. **Identify Neutrophils (A)**:
- Neutrophils are known to have a segmented nucleus that typically has 3 to 5 lobes.
- **Match**: A (Neutrophils) → (iii) 3 to 5 lobes.

2. **Identify Eosinophils (B)**:
- Eosinophils have a bilobed nucleus, which means it has 2 lobes.
- **Match**: B (Eosinophils) → (iv) 2 lobes.

3. **Identify Basophils (C)**:
- Basophils usually have a nucleus that is not well-defined and can appear S-shaped or have 2 to 3 lobes.
- **Match**: C (Basophils) → (ii) S-shaped.

4. **Identify Monocytes (D)**:
- Monocytes have a large single nucleus that is often described as kidney-shaped.
- **Match**: D (Monocyte) → (i) Kidney-shaped.

### Summary of Matches:
- A → (iii) 3 to 5 lobes (Neutrophils)
- B → (iv) 2 lobes (Eosinophils)
- C → (ii) S-shaped (Basophils)
- D → (i) Kidney-shaped (Monocyte)

### Final Answer:
The correct option from the codes is:
- A → (iii)
- B → (iv)
- C → (ii)
- D → (i)

Thus, the answer is option 4.