A person’s blood group is decided by the antigens on the red blood cells. Even if people have never had a blood transfusion, antibodies are present in their blood plasma. These antibodies are found in the plasma of the person receiving the blood, which means that some transfusions are unsafe. The table gives the antigens and antibodies in the blood of people with different blood groups. Which blood groups can safely receive blood from a person with blood group A?
- AA and AB
- BA and O
- CB and O
- DAB only