Which of the following contains as aromatic a ring?: (A) Estradiol, (B) Testosterone, (C) Aldosterone, (D) Coisol
Answer is A. Estradiol is the 17-beta-isomer of estradiol, an aromatized C18 steroid with hydroxyl group at 3-beta- and 17-beta-position.Ref: DM Vasudevan, 7th edition, page no: 669