Among china rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have a superior ovary?

A flower has a superior ovary when the base of the ovary is located above where the sepals, petals, and stamens are attached. This point of attachment is referred to as the receptacle or hypanthium, the fused bases of the three floral parts. A superior ovary is found in fleshy fruits such as true berries, drupes; members of family Cucurbitaceae like onion, melons and squash; brinjal, china rose, mustard, tomatoes, potato, oranges, tulips. Guava and cucumber have inferior ovary.