Fred's blood was determined to be AB positive. What does this mean? A. Antibodies to A and B are present in the red cells. B. His blood lacks Rh factor. C. There are no antibodies to A, to B, or to Rh antigens in the plasma. D. He can only receive blood from a donor who is AB positive.

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.