Final answer:
A person with type B positive blood may have a transfusion reaction if they receive AB positive blood, as their immune system will attack the A antigens present in the transfused blood.
Step-by-step explanation:
If a person with type B positive blood receives a transfusion of type AB positive blood, it can potentially lead to a transfusion reaction. This is because type B blood can only accept B and O blood types without adverse reactions. The type B immune system will recognize the A antigens present in the AB blood as foreign and may attack the transfused blood cells. To avoid transfusion reactions, matching blood types is crucial, and therefore a type B recipient should ideally receive blood from a type B donor.