Ovary develops from all except: (A) Coelomic Epithelium, (B) Yolk sac endoderm, (C) Gonadal ridge mesenchyme, (D) Urogenital sinus
Answer is D. Ovary develops from 3 major cellular sources

Primordial germ cells
Coelomic epithelial cells
Mesenchymal cells from gonadal ridge.