Answer:
A. Antibodies to A and B are present in the red cells.
Explanation:
AB positive is a blood type with the presence of A and B antibodies in the red blood cells, with the absence of A and B antigens. This blood type is referred to as the “universal recipient” because individuals who are AB positive can receive from all blood types including O, A and B. AB positive is only able to donate blood to patients who are AB positive AB is referred to the rarest blood type.
Therefore Fred's red blood cells have A and B antibodies.