How did the discovery of the rhesus factor affect society?
A. More patients died from having a transfusion with the wrong rhesus factor.
B. New treatments during pregnancy could prevent harm to the developing child.
C. Less donated blood could be used in the treatment of patients.
D. The number of blood types was reduced by half.

Question

How did the discovery of the rhesus factor affect society?
A. More patients died from having a transfusion with the wrong rhesus factor.
B. New treatments during pregnancy could prevent harm to the developing child.
C. Less donated blood could be used in the treatment of patients.
D. The number of blood types was reduced by half.

eclipsedstar · Answer

I'm pretty sure C and D are incorrect...