Match column I with column II and select the correct answer from the given codes.
`{:(Column I,Column II),(A."Mycorrhizae",(i)"Azadirachtin"),(B."Bacillus thuringiensis",(ii)"Phosphours nutrition"),(C."Root nodules",(iii)"Leghaemoglobin"),(D."Biopesticide",(iv)"Bioinsecticide"):}`

Options

A. `A-(iii),B-(i),C-(ii),D-(iv)`
B. `A-(ii),B-(iii),C-(iv),D-(i)`
C. `A-(ii),B-(iv),C-(iii),D-(i)`
D. `A-(iii),B-(iv),C-(ii),D-(i)`

Answer

To solve the matching question between Column I and Column II, we will analyze each item in Column I and find its corresponding match in Column II.

### Step-by-Step Solution:

1. **Match Mycorrhizae (A)**:
- Mycorrhizae are symbiotic associations between fungi and plant roots. They play a crucial role in enhancing phosphorus uptake for plants.
- **Match**: Mycorrhizae → (ii) Phosphorus nutrition.

2. **Match Bacillus thuringiensis (B)**:
- Bacillus thuringiensis is a bacterium that acts as a biocontrol agent against various insect pests. It is commonly used as a bioinsecticide.
- **Match**: Bacillus thuringiensis → (iv) Bioinsecticide.

3. **Match Root nodules (C)**:
- Root nodules are formed by nitrogen-fixing bacteria (like Rhizobium) in the roots of legumes. They contain leghemoglobin, which helps in the transportation of oxygen to the bacteria while protecting them from oxygen toxicity.
- **Match**: Root nodules → (iii) Leghaemoglobin.

4. **Match Biopesticide (D)**:
- Biopesticides are derived from natural materials and are used to control pests. Azadirachtin, derived from neem, is a well-known biopesticide.
- **Match**: Biopesticide → (i) Azadirachtin.

### Final Matches:
- A → (ii) Phosphorus nutrition
- B → (iv) Bioinsecticide
- C → (iii) Leghaemoglobin
- D → (i) Azadirachtin

### Answer Code:
The correct answer code for the matches is:
- A - (ii)
- B - (iv)
- C - (iii)
- D - (i)

Thus, the final answer is **C**.

---