Which part of a flower is treated as the female reproductive organ of a flower?

Explanation

**Step-by-Step Solution:**

1. **Identify the Female Reproductive Organ**: In a flower, the female reproductive organ is known as the pistil. It is essential to understand that the pistil is made up of three main parts: the stigma, style, and ovary.

2. **Understanding the Structure**:
- **Stigma**: This is the top part of the pistil where pollen grains land.
- **Style**: This is the slender stalk that connects the stigma to the ovary.
- **Ovary**: This is the swollen base of the pistil that contains the ovules, which develop into seeds after fertilization.
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