Match the following and choose the correct combination from the options.
`{:("Column - I","Column - II"),("A Potassium","(i) Constituent of ferredoxin"),("B Sulphur","(ii) Involved in stomatal movement "),("C Molybdenum","(iii) Auxin synthesis"),("D Zinc","(iv) Component of nirogenase"):}`

Options

A. A -ii, B - i, C -iv , D - iii
B. A -i, B - ii, C -iii , D - iv
C. A -iv, B - iii, C -ii, D - i
D. A -ii, B - iii, C -iv , D - i

Answer

To solve the matching question, we need to pair each element from Column I with the correct description from Column II. Let's analyze each element one by one.

### Step 1: Analyze Potassium
- Potassium (K) is known to be involved in the turgor movement of guard cells, which regulates stomatal opening and closing.
- **Match**: Potassium → (ii) Involved in stomatal movement.

### Step 2: Analyze Sulphur
- Sulphur (S) is a key component of certain amino acids and proteins, and it is also a constituent of ferredoxin, which is involved in electron transport during photosynthesis.
- **Match**: Sulphur → (i) Constituent of ferredoxin.

### Step 3: Analyze Molybdenum
- Molybdenum (Mo) is an essential micronutrient that plays a crucial role in nitrogen fixation and is a component of the enzyme nitrogenase.
- **Match**: Molybdenum → (iv) Component of nitrogenase.

### Step 4: Analyze Zinc
- Zinc (Zn) is required for the synthesis of auxins, which are plant hormones that regulate growth.
- **Match**: Zinc → (iii) Auxin synthesis.

### Final Matching
Now, we can summarize the matches:
- A (Potassium) → (ii) Involved in stomatal movement
- B (Sulphur) → (i) Constituent of ferredoxin
- C (Molybdenum) → (iv) Component of nitrogenase
- D (Zinc) → (iii) Auxin synthesis

### Correct Combination
The correct combination is:
- A - (ii)
- B - (i)
- C - (iv)
- D - (iii)

### Conclusion
The right answer to the question is option number one.

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