Four sepals `K_(4)` or (2 + 2) is the characteristic feature of the family :

Options

A. Solanaceae
B. Malvaceae
C. Papilionaceae
D. Brassicaceae

Answer

To solve the question regarding which family is characterized by having four sepals (K4) arranged as (2 + 2), we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Sepals**: The question states that the plant has four sepals, denoted as K4. This notation indicates that there are four sepals in total.

2. **Arrangement of Sepals**: The notation (2 + 2) suggests that the sepals are arranged in two whorls, with two sepals on one side and two on the other. This arrangement is referred to as dimerous.

3. **Identifying the Family**: We need to identify which plant family is characterized by this specific arrangement of sepals.

4. **Considering Plant Families**:
- **Brassicaceae**: This family, also known as the Mustard family or Cruciferae, is known for having four sepals arranged in a dimerous pattern (2 + 2).
- **Solanaceae**: This family typically has five sepals.
- **Malvaceae**: This family also has five sepals.
- **Papilionaceae**: Members of this family usually have five sepals as well.

5. **Conclusion**: Since the only family that matches the criteria of having four sepals arranged as (2 + 2) is the Brassicaceae family, we conclude that the answer is Brassicaceae.

### Final Answer:
The family characterized by four sepals (K4) arranged as (2 + 2) is **Brassicaceae**.

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