Match the following Columns.
`{:(,"Column I",,,"Column II"),(A.,"Golden rice",,1.,"Armyworm"),(B.,"Bt toxin",,2.,"Rich in vitamin - A"),(C., "RNAi",,3.,"Cry protein"),(D.,"Lepidopterans",,4.,"Gene silencing"):}`

Options

A. `{:(A,,B,,C,,D),(2,,3,,4,,1):} `
B. `{:(A,,B,,C,,D),(3,,4,,1,,2):} `
C. `{:(A,,B,,C,,D),(4,,1,,2,,3):} `
D. `{:(A,,B,,C,,D),(2,,1,,3,,4):} `

Answer

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

### Step-by-Step Solution:

1. **Identify Golden Rice**:
- Golden rice is a genetically modified organism (GMO) that is enriched with beta-carotene, which the body converts into vitamin A.
- **Match**: A (Golden rice) → 2 (Rich in vitamin - A)

2. **Identify Bt Toxin**:
- Bt toxin is a protein produced by the bacterium Bacillus thuringiensis. This protein is known for its insecticidal properties and is often used in agriculture to control pests.
- The specific protein produced is referred to as Cry protein.
- **Match**: B (Bt toxin) → 3 (Cry protein)

3. **Identify RNAi**:
- RNA interference (RNAi) is a biological process in which RNA molecules inhibit gene expression, effectively silencing specific genes.
- **Match**: C (RNAi) → 4 (Gene silencing)

4. **Identify Lepidopterans**:
- Lepidopterans are insects that belong to the order Lepidoptera, which includes moths and butterflies. The larvae of many lepidopterans, such as the armyworm, are known to be agricultural pests.
- **Match**: D (Lepidopterans) → 1 (Armyworm)

### Final Matches:
- A → 2 (Golden rice → Rich in vitamin - A)
- B → 3 (Bt toxin → Cry protein)
- C → 4 (RNAi → Gene silencing)
- D → 1 (Lepidopterans → Armyworm)

### Summary of Matches:
- A - 2
- B - 3
- C - 4
- D - 1