Match the following .
`{:(,"Column-I (Mineral)",,"Column-II (Role)"),(a.,K,(i),"Water splitting "),(b.,Zn,(ii),"Energy metabolism"),(c.,Mg,(iii),"Auxin synthesis"),(d.,Mn,(iv),"Stomatal movement"):}`

Options

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

Answer

To solve the matching question, we need to correlate each mineral from Column-I with its respective role from Column-II based on their functions in biological processes. Let's go through each mineral step by step.

### Step-by-Step Solution

1. **Identify the Minerals and Their Roles**:
- Column I:
- (a) K (Potassium)
- (b) Zn (Zinc)
- (c) Mg (Magnesium)
- (d) Mn (Manganese)
- Column II:
- (i) Water splitting
- (ii) Energy metabolism
- (iii) Auxin synthesis
- (iv) Stomatal movement

2. **Match Potassium (K)**:
- Potassium is crucial for the opening and closing of stomata. This process is referred to as stomatal movement.
- **Match**: K (Potassium) → (iv) Stomatal movement.

3. **Match Zinc (Zn)**:
- Zinc acts as a cofactor in the synthesis of auxins, which are important plant hormones.
- **Match**: Zn (Zinc) → (iii) Auxin synthesis.

4. **Match Magnesium (Mg)**:
- Magnesium serves as a cofactor in energy metabolism, particularly in processes like glycolysis (the breakdown of glucose).
- **Match**: Mg (Magnesium) → (ii) Energy metabolism.

5. **Match Manganese (Mn)**:
- Manganese is involved in the photolysis of water during photosynthesis, which is the splitting of water molecules.
- **Match**: Mn (Manganese) → (i) Water splitting.

### Final Matches:
- (a) K → (iv) Stomatal movement
- (b) Zn → (iii) Auxin synthesis
- (c) Mg → (ii) Energy metabolism
- (d) Mn → (i) Water splitting

### Conclusion:
The correct matches are:
- A → iv
- B → iii
- C → ii
- D → i

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

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