Match the columns :
`{:(,"Pheretima",,"Cell Features"),(a,"Phagocytes",1.,"Small cells with yellowish granules"),(b,"Chloragogen cells",2.,"Elongated cells"),(c,"Circular cells",3.,"Largest cells"),(d,"Mucocytes",4.,"Cells with surface markings"):}`

Options

A. a-3, b-4, c-1, d-2
B. a-2, b-1, c-4, d-3
C. a-3, b-1, c-4, d-2
D. a-4, b-3, c-2 d-1

Answer

To solve the question of matching the columns, we need to identify the correct features of each type of cell associated with "Pheretima." Here’s how we can systematically approach the problem:

### Step-by-Step Solution:

1. **Identify the Cells:**
- We have four types of cells:
- A: Phagocytes
- B: Chloragogen cells
- C: Circular cells
- D: Mucocytes

2. **Match Phagocytes (A):**
- According to the video, phagocytes are described as the largest cells. They are saucer-shaped, granular, and have several folds on the surface.
- **Match:** A → 3 (Largest cells)

3. **Match Chloragogen Cells (B):**
- Chloragogen cells are identified as having surface markings.
- **Match:** B → 4 (Cells with surface markings)

4. **Match Circular Cells (C):**
- Circular cells are described as small cells with yellowish granules. They are nucleated and somewhat round in shape.
- **Match:** C → 1 (Small cells with yellowish granules)

5. **Match Mucocytes (D):**
- Mucocytes are elongated cells, each having a broad fan-like process attached to a narrow nucleated body.
- **Match:** D → 2 (Elongated cells)

### Final Matches:
- A → 3 (Phagocytes → Largest cells)
- B → 4 (Chloragogen cells → Cells with surface markings)
- C → 1 (Circular cells → Small cells with yellowish granules)
- D → 2 (Mucocytes → Elongated cells)

### Conclusion:
The correct matches are:
- A3, B4, C1, D2

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