Erythroblastosis fetalis may develop when:
ক) Rh (+) mother carries Rh (+) fetus খ) Rh (−) mother carries Rh (−) fetus গ) Rh (+) mother carries Rh (−) fetus ঘ) Rh (−) mother carries Rh (+) fetus
ক) Rh (+) mother carries Rh (+) fetus খ) Rh (−) mother carries Rh (−) fetus গ) Rh (+) mother carries Rh (−) fetus ঘ) Rh (−) mother carries Rh (+) fetus