Multiple choice In which of the following does Erythroblastosis fetalis occur? The mother is Rh negative, and the child is Rh positive. The mother is Rh positive, and the child is Rh negative. The father is is Rh negative, and the child is Rh positive. The father is Rh positive, and the child is Rh negative. Mother and father are both Rh positive, but the child is Rh negative. Reveal answer Fill a bubble to check yourself A Correct answer Explanation It is an alloimmune condition that develops in fetus when the mother is Rh negative, and the fetus is Rh positive.