Match the following and choose the correct combination from the options given.
`{:("Column I","Column II"),("A. Mustard","1. Polyadelphy"),("B. Brinjal","2. Diadelphy"),("C. Citrus","3. Variations in the length of filaments"),("D. Pea ","4. Epipetalous stamens"):}`

Options

A. A - 4 , B - 3, C - 2 , D - 1
B. A - 1, B - 2, C - 3 , D - 4
C. A - 2 , B - 3, C - 4 , D - 1
D. A - 3 , B - 4, C - 1 , D - 2

Answer

To solve the matching question, we need to correlate the plants listed in Column I with the correct morphological characteristics described in Column II. Here's a step-by-step breakdown of the solution:

### Step 1: Analyze Column I
- **A. Mustard**
- **B. Brinjal**
- **C. Citrus**
- **D. Pea**

### Step 2: Analyze Column II
- **1. Polyadelphous**
- **2. Diadelphous**
- **3. Variations in the length of filaments**
- **4. Epipetalous stamens**

### Step 3: Match Each Plant with Its Characteristic
1. **Mustard (A)**:
- Mustard flowers exhibit variations in the length of filaments.
- **Match: A - 3** (Variations in the length of filaments)

2. **Brinjal (B)**:
- Brinjal belongs to the Solanaceae family, where stamens are often fused with the petals, a condition known as epipetalous stamens.
- **Match: B - 4** (Epipetalous stamens)

3. **Citrus (C)**:
- Citrus flowers typically show a polyadelphous condition, where multiple stamens are fused into groups.
- **Match: C - 1** (Polyadelphous)

4. **Pea (D)**:
- Pea flowers exhibit a diadelphous condition, where the stamens are arranged in two bundles.
- **Match: D - 2** (Diadelphous)

### Step 4: Final Matching
Now that we have matched each plant with its respective characteristic, we can summarize the final combinations:
- A - 3 (Mustard - Variations in the length of filaments)
- B - 4 (Brinjal - Epipetalous stamens)
- C - 1 (Citrus - Polyadelphous)
- D - 2 (Pea - Diadelphous)

### Final Answer
The correct combination is:
- A - 3
- B - 4
- C - 1
- D - 2