Match the following and chose the correct combination
`{:(, "Column I",,ColumnII),(A,"Zeatin",1, "flowering hormone"),(B,"Florigen ",2,"synthethic auxin "),(C,IBA,3,"cytokinin"),(D,"NAA",4, "Natural auxin"):}`

Options

A. a - 3, b - 1, c - 4, d - 2
B. a - 4, b - 1, c - 2, d - 3
C. a - 3, b - 4, c - 1, d - 2
D. a - 2, b - 1, c - 4, d - 3

Answer

To solve the matching question, we will analyze each item in Column I and match it with the correct item in Column II based on their definitions and characteristics.

### Step-by-Step Solution:

1. **Identify Zeatin**:
- Zeatin is known to be a type of cytokinin, which is a plant growth regulator that promotes cell division and growth.
- **Match**: Zeatin (A) → Cytokinin (3).

2. **Identify Florigen**:
- Florigen is recognized as the flowering hormone that induces flowering in plants.
- **Match**: Florigen (B) → Flowering hormone (1).

3. **Identify IBA**:
- IBA stands for Indole-3-butyric acid, which is a naturally occurring auxin involved in root development.
- **Match**: IBA (C) → Natural auxin (4).

4. **Identify NAA**:
- NAA stands for Naphthalene acetic acid, which is a synthetic auxin used in plant growth regulation.
- **Match**: NAA (D) → Synthetic auxin (2).

### Final Matches:
- A → 3 (Zeatin → Cytokinin)
- B → 1 (Florigen → Flowering hormone)
- C → 4 (IBA → Natural auxin)
- D → 2 (NAA → Synthetic auxin)

### Correct Combination:
The correct combination is:
- A: 3
- B: 1
- C: 4
- D: 2