Match items of coloumn I and coloumn II
`{:(,"Coloumn I ",,"Coloumn II"),(,"(Vascular bundle)",,"(Organ)"),(A.,"Collateral and open",(i),"Cucurbita stem"),(B.,"Radial",(ii),"Fern stem"),(C.,"Bicollateral",(iii),"Maize root"),(D.,"Concentric",(iv),"Sunflower"),(,,(v),"Maize stem"):}`

Options

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

Answer

To solve the matching question between Column I (Vascular Bundles) and Column II (Organs), we need to analyze each type of vascular bundle and identify the corresponding plant organ.

### Step-by-Step Solution:

1. **Identify the Vascular Bundles**:
- **Collateral and Open**: In this type, the xylem and phloem are arranged side by side at the same radius.
- **Radial**: In radial vascular bundles, xylem and phloem are arranged alternately on different radii.
- **Bicollateral**: In this arrangement, phloem is present on both sides of the xylem.
- **Concentric**: One vascular element surrounds the other, meaning either xylem surrounds phloem or vice versa.

2. **Match Each Vascular Bundle with the Correct Organ**:
- **A. Collateral and Open**: This type is found in the **Sunflower** (option iv).
- **B. Radial**: This type is found in the **Maize root** (option iii).
- **C. Bicollateral**: This type is found in the **Cucurbita stem** (option i).
- **D. Concentric**: This type is found in **Fern stem** (option ii).

3. **Final Matching**:
- A → iv (Sunflower)
- B → iii (Maize root)
- C → i (Cucurbita stem)
- D → ii (Fern stem)

### Summary of Matches:
- A (Collateral and Open) → iv (Sunflower)
- B (Radial) → iii (Maize root)
- C (Bicollateral) → i (Cucurbita stem)
- D (Concentric) → ii (Fern stem)

### Final Answer:
The correct matches are:
- A → iv
- B → iii
- C → i
- D → ii