Match the items in column 'A' and column 'B' and choose correct answer.
`{:(Column A, Column B),((i)"Lady bird",(A)"Methanobacterium"),((ii)"Mycorrhiza",(B)"Trichoderma"),((iii)"Biological control",(C)"Aphids"),((iv)"Biogas",(D)"Glomus"):}`
The correct answer is

Options

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

Answer

To solve the matching question, we need to pair the items from Column A with the correct items from Column B based on their definitions or roles. Let's go through each item step by step.

### Step-by-Step Solution:

1. **Match "Ladybird"**:
- The ladybird is a beetle known for its black and red markings. It is commonly used as a biological control agent because it preys on pests, particularly aphids.
- **Match**: Ladybird → Aphids (C)

2. **Match "Mycorrhiza"**:
- Mycorrhiza refers to the symbiotic association between fungi and plant roots. The specific type of fungi that forms this association is often from the genus Glomus.
- **Match**: Mycorrhiza → Glomus (D)

3. **Match "Biological Control"**:
- Biological control involves using natural predators or pathogens to manage pest populations. Trichoderma is a genus of fungi that can act as a biocontrol agent against various plant diseases.
- **Match**: Biological Control → Trichoderma (B)

4. **Match "Biogas"**:
- Biogas is produced by methanogenic bacteria under anaerobic conditions. Methanobacterium is a genus of these bacteria that specifically produces methane, which is a key component of biogas.
- **Match**: Biogas → Methanobacterium (A)

### Final Matches:
- (i) Ladybird → (C) Aphids
- (ii) Mycorrhiza → (D) Glomus
- (iii) Biological Control → (B) Trichoderma
- (iv) Biogas → (A) Methanobacterium

### Conclusion:
The correct answer is:
- (i) C
- (ii) D
- (iii) B
- (iv) A