Please hurry! :) 15 points
Why is it most important to know a person’s thesis factor before a blood transfusion?
A: A patient who is Rh+ can receive only Rh- blood.
B: A patient who is Rh- can receive only Rh+blood.
C: A patient who is Rh+can receive only Rh+blood.
D: A patient who is Rh- can receive only Rh- blood.