In which of the following situations is there | vedclass

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(B) The correct answer is $(B)$.Erythroblastosis fetalis is a condition that occurs when an $Rh$-negative mother carries an $Rh$-positive fetus.During

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Mother is $Rh$ negative and father is $Rh$ positive

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(B) The correct answer is $(B)$.Erythroblastosis fetalis is a condition that occurs when an $Rh$-negative mother carries an $Rh$-positive fetus.During the first pregnancy,the mother's blood is exposed to the $Rh$ antigens of the fetus during delivery,causing her to produce anti-$Rh$ antibodies.In subsequent pregnancies,if the fetus is again $Rh$ positive,these maternal antibodies cross the placenta and destroy the fetal red blood cells (hemolysis).This risk specifically arises when the mother is $Rh$ negative and the father is $Rh$ positive,as the fetus may inherit the $Rh$ positive trait.

In which of the following situations is there a risk factor for children of incurring erythroblastosis fetalis?

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