<prompt>  Dr. Shweta decided to add a progestin for 1012 days each month to estrogen replacement therapy in menopausal women in the gynaecology OPD. Addition of progestin is recommended because the progestin:Blocks the increased risk of myocardial infarction due to estrogenBlocks the increased risk of endometrial carcinoma due to estrogenReverses vulval atrophy occurring pausal womenEnhances the metabolic benefits of estrogen treatment 