What is the female structure of flower that includes ovary and stigma?

The correct answer is Pistil.

The pistil is the female reproductive organ of a flower. It consists of the ovary, style, and stigma. The ovary is the swollen base of the pistil that contains the ovules. The style is the slender stalk that connects the ovary to the stigma. The stigma is the sticky tip of the style that receives the pollen grains.