Match the following and choose the correct combination from the option given
`{:("Column I", "Column II"),(a."Sulphur",i."Chlorophyll"),(b."zinc",ii."Nitrogenase"),(c."Magnesium",iii."Methionine"),(d."Molybdenum",iv. "Auxin"):}`

Options

A. a-I,b-ii,c-iii,d-iv
B. a-iii,b-iv,c-I,d-ii
C. a-iii,b-I,c-ii,d-iv
D. a-ii,b-iv,c-I,d-iii

Answer

To solve the matching question, we need to pair the elements from Column I with their corresponding functions or associations in Column II. Let's analyze each element step by step.

### Step 1: Match Sulphur
- **Element**: Sulphur
- **Options**: Methionine, Chlorophyll, Nitrogenase, Auxin
- **Analysis**: Sulphur is a component of the amino acid methionine. Therefore, we match:
- **Sulphur → Methionine (iii)**

### Step 2: Match Zinc
- **Element**: Zinc
- **Options**: Methionine, Chlorophyll, Nitrogenase, Auxin
- **Analysis**: Zinc acts as a cofactor for enzymes involved in the synthesis of auxin (indole acetic acid). Therefore, we match:
- **Zinc → Auxin (iv)**

### Step 3: Match Magnesium
- **Element**: Magnesium
- **Options**: Methionine, Chlorophyll, Nitrogenase, Auxin
- **Analysis**: Magnesium is essential for the formation of chlorophyll, which is crucial for photosynthesis. Therefore, we match:
- **Magnesium → Chlorophyll (i)**

### Step 4: Match Molybdenum
- **Element**: Molybdenum
- **Options**: Methionine, Chlorophyll, Nitrogenase, Auxin
- **Analysis**: Molybdenum is a cofactor for enzymes involved in nitrogen fixation, specifically nitrogenase. Therefore, we match:
- **Molybdenum → Nitrogenase (ii)**

### Summary of Matches
- A (Sulphur) → iii (Methionine)
- B (Zinc) → iv (Auxin)
- C (Magnesium) → i (Chlorophyll)
- D (Molybdenum) → ii (Nitrogenase)

### Final Matching
- A → iii
- B → iv
- C → i
- D → ii

### Conclusion
The correct combination from the options given is:
- A → iii, B → iv, C → i, D → ii

### Answer
The correct option is the second option.

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