The correct option is C Hypogynous flowers have superior ovary
If the sepals, petals and stamens arise from below the ovary, then the flower is called hypogynous and the ovary is said to be superior.
If the sepals, petals and stamens are located on the rim of the thalamus almost at the same level as the ovary then the flower is called perigynous and the ovary is said to be half inferior.
If the sepals, petals and stamens appear to be attached to the top of the ovary then the flower is called epigynous and the ovary is said to be inferior.