An Rh- woman married to Rh+ man gave birth to three children, one of which died of erythroblastosis foetalis. What is genotype of woman and man?
Rh- Rh-, Rh+ Rh-
Rh+ Rh+, Rh+ Rh+
Rh- Rh+, Rh Rh+
Rh- Rh-, Rh- Rh-