Match the following columns.
`{:("Column -I","Column-II"),("(A) Underground stem","(1)Euphorbia"),("(B)Stem tendril","(2)Opuntia"),("(C)Stem thorns","(3) Potato"),("(D) Flattened stem","(4) Citrus"),("(E) Fleshy cylindrical stem","(5)Cucumber"):}`

Options

A. `{:(A,B,C,D,E),(1,2,3,5,4):}`
B. `{:(A,B,C,D,E),(2,3,4,5,1):}`
C. `{:(A,B,C,D,E),(3,4,5,1,2):}`
D. `{:(A,B,C,D,E),(3,5,4,2,1):}`

Answer

To solve the matching question, we need to identify the correct pairs between Column-I and Column-II based on the characteristics of the plants mentioned.

### Step-by-Step Solution:

1. **Identify Underground Stem**:
- The only option in Column-II that is known to be an underground stem is **(3) Potato**.
- **Match**: (A) Underground stem → (3) Potato

2. **Identify Stem Tendril**:
- The plant that has stem tendrils is **(5) Cucumber**.
- **Match**: (B) Stem tendril → (5) Cucumber

3. **Identify Stem Thorns**:
- Stem thorns are found in plants like **(4) Citrus** and **(1) Euphorbia**. However, based on common knowledge, thorns are more commonly associated with **(4) Citrus**.
- **Match**: (C) Stem thorns → (4) Citrus

4. **Identify Flattened Stem**:
- A flattened stem is characteristic of **(2) Opuntia** (commonly known as cactus).
- **Match**: (D) Flattened stem → (2) Opuntia

5. **Identify Fleshy Cylindrical Stem**:
- The fleshy cylindrical stem is found in **(1) Euphorbia**.
- **Match**: (E) Fleshy cylindrical stem → (1) Euphorbia

### Final Matches:
- (A) Underground stem → (3) Potato
- (B) Stem tendril → (5) Cucumber
- (C) Stem thorns → (4) Citrus
- (D) Flattened stem → (2) Opuntia
- (E) Fleshy cylindrical stem → (1) Euphorbia

### Answer:
- The final answer is:
- (A) → (3)
- (B) → (5)
- (C) → (4)
- (D) → (2)
- (E) → (1)