Laboratory studies of maternal and cord blood yield the results: Maternal Blood O, Rh negative Anti-E in serum Cord Blood B, Rh positive DAT 2+ Anti E in eluate If exchange transfusion is necessary, the best choice of blood is: B, Rh-negative, E+ B, Rh-positive E+ O, Rh-negative, E= O, Rh Positive, E=