14.The most important component of the oral contraceptive pills is A. Progesterone B. Growth hormone C. Thyroxine D. Luteinizing hormone
Option A. Birth control pills (oral contraceptives) check ovulation in female by inhibiting the secretion of FSH and LH that are necessary for ovulation. It contain small doses of either progesterone alone or a combination of progesterone and estrogen (combined pill). So, the correct answer is 'Progesterone'
