Oil reservoir of Groundnut is present in

Options

A. embryo
B. cotyledons
C. endosperm
D. underground

Explanation

To answer the question about where the oil reservoir of groundnut is present, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Plant**: Recognize that groundnut, also known as peanut, belongs to the family Fabaceae.

2. **Understand the Structure of the Seed**: Groundnut seeds consist of several parts, including the cotyledons, embryo, and endosperm.

3. **Focus on Cotyledons**: Cotyledons, also referred to as seed leaves, are crucial in the seed's structure. They serve as storage organs.

4. **Oil Storage**: The oil reservoir in groundnut is primarily located in the cotyledons. These cotyledons store oil, which is used as an energy source during the germination process.

5. **Clarify Other Options**:
- The embryo is not the oil reservoir.
- The endosperm does not contain the oil in significant amounts.
- Groundnut does not have underground tubers.

6. **Conclusion**: Based on the information above, the correct answer is that the oil reservoir of groundnut is present in the **cotyledons**.

### Final Answer:
The oil reservoir of groundnut is present in the **cotyledons**.

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