True about vagina development is all except: (A) Mucous membrane of vagina is derived from endoderm of urogenital sinus., (B) Hymen is remnant of sinovaginal bulb., (C) Upper 1/3 rd of vagina is derived from mullerian ducts., (D) Lower 1/3rd of vagina is derived from urogenital sinus.
Answer is C. Mullerian duct forms upper 2/3rd of vagina.