<prompt> To avoid contraception, DMPA is given:Monthly3 Monthly6 MonthlyYearly  <response>: Ans. is b, i.e. 3 monthlyRef: Jeffcoate 7thed, p812; Dutta Obs 6thed, p548; Park 20thed, p433-434; Leon Speroff 7thed, p962-963DMPA i.e. depot medroxyprogesterone acetate depot provera and Net en are progesterone only injectable contraceptives 