Stony endocarp is present in:

Options

A. Berry - Tomato
B. Drupe - Mango
C. Pod - Groundnut
D. Pome - coconut

Answer

To determine which fruit has a stony endocarp, we need to understand the characteristics of different types of fruits, particularly focusing on drupes.

### Step-by-Step Solution:

1. **Understanding Endocarp**: The endocarp is the innermost layer of the fruit that surrounds the seed. In some fruits, this layer can be hard and stony.

2. **Identifying Drupe**: A drupe is a type of fruit that has a fleshy outer layer (exocarp and mesocarp) and a hard, stony inner layer (endocarp). Examples of drupes include peaches, cherries, and mangoes.

3. **Characteristics of Drupe**:
- **Fleshy Exocarp**: The outer skin of the fruit is fleshy.
- **Fleshy Mesocarp**: The middle layer is also fleshy.
- **Stony Endocarp**: The innermost layer is hard and protects the seed.

4. **Examples of Fruits**:
- **Mango**: A classic example of a drupe, where the outer part is fleshy, and the inner part (the pit or seed) is hard.
- **Tomato**: This is a fleshy fruit without a stony endocarp.
- **Groundnut (Peanut)**: This is a legume and does not have a stony endocarp.
- **Coconut**: While it has a hard outer shell, the inner part is not stony in the same sense as a drupe.

5. **Conclusion**: Based on the definitions and examples, the fruit that has a stony endocarp is the **mango**, which is a drupe.

### Final Answer:
The fruit with a stony endocarp is **Mango** (Option 2).