Which of the Following Are the Most Proficient at Phagocytosis

Which of the following Rh factor combinations could cause agglutination of an infant's red blood cells? A) Mother-, father+, infant+ B) Mother-, father-, infant- C) Mother+, father-, infant+ D) Mother+, father+, infant-

People with type AB blood are considered universal recipients because their blood: A) does not contain the Rh antigen. B) does not contain either anti-A or anti-B antibodies. C) is absent of both antigen A and antigen B in the red blood cells. D) Both B and C are correct.