Match the element with its associated functions/roles and choose the correct option among given below.
`{:(A." Boron",(i)."Splitting of water"), (B." Manganese",(ii)."Needed for synthesis of auxins"),(C." Molybdenum",(iii). "Component of nitrogenase"),(D." Zinc",(iv)."Pollen germination"),(E." Iron",(v)."Component of feredoxin"):}`

Options

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

Answer

To solve the question of matching the elements with their associated functions, we will analyze each element and its respective role step by step.

### Step-by-Step Solution:

1. **Identify Boron:**
- Boron is essential for pollen germination and growth. It plays a crucial role in the development of pollen grains.
- **Match:** Boron → (iv) Pollen germination.

2. **Identify Manganese:**
- Manganese (Mn²⁺) is involved in the photolysis of water, which is the splitting of water molecules during photosynthesis. It acts as a cofactor for the enzymes involved in this process.
- **Match:** Manganese → (i) Splitting of water.

3. **Identify Molybdenum:**
- Molybdenum is a vital component of the enzyme nitrogenase, which is crucial for nitrogen fixation in plants.
- **Match:** Molybdenum → (iii) Component of nitrogenase.

4. **Identify Zinc:**
- Zinc acts as a cofactor for various enzymes, including those involved in the synthesis of auxins, which are important plant hormones.
- **Match:** Zinc → (ii) Needed for synthesis of auxins.

5. **Identify Iron:**
- Iron is a key component of ferredoxin, which is involved in electron transport in photosynthesis and other metabolic processes.
- **Match:** Iron → (v) Component of ferredoxin.

### Summary of Matches:
- A (Boron) → (iv) Pollen germination
- B (Manganese) → (i) Splitting of water
- C (Molybdenum) → (iii) Component of nitrogenase
- D (Zinc) → (ii) Needed for synthesis of auxins
- E (Iron) → (v) Component of ferredoxin

### Conclusion:
The correct option that matches all the elements with their respective functions is the second option, as it aligns with the matches we have identified.