The chances of Erythroblastosis foetalis is high when
Woman is Rh+ and man is Rh- and Foetus is Rh +
Woman is Rh + and Man is also Rh + and Foetus is Rh -
Woman is Rh - and man is Rh + and Foetus is Rh +
Woman is Rh - and man is also Rh - and Foetus is Rh +
Erythroblastosis fetalis results when a woman with Rh-negative blood is impregnated by a man with Rh-positive blood and conceives a fetus with Rh-positive blood, sometimes resulting in hemolysis.