Which one of the following characteristics is not related to gynoec...

Which one of the following characteristics is not related to gynoecium?

A. It is the female reproductive part of the flower

B. It is composed of stamens

C. Stigma is usually at the tip of the style and is the receptive surface for pollen grains

D. Each ovary bears one or more ovules attached to a flattened, cushion-like placenta