Biology -BLOOD TYPE ABO?

2. Individuals with type AB blood can theoretically receive blood from individuals with types A, B, AB, and O blood. Conversely, individuals with type O blood can theoretically give blood to individuals with type A, B, AB, and O blood. Explain why both situations are possible on the basis of the antigen-antibody response. Can you relate this response to hemolytic disease of the newborn? How is this condition treated? How can it be prevented?