Which of the following statements concerning the Rh factor is CORRECT?
A) The Rh antigen is on white blood cells.
B) Eighty-five percent of humans are Rh positive.
C) Preexisting antibodies occur in 85% of the population.
D) Rh antibodies are more abundant than the ABO antibodies.
E) Eighty-five percent of the human population is Rh negative.
B
Bloom's Taxonomy: Comprehension
Section: Hypersensitivities
Learning Outcome: 18.7
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