Question

why is type ab blood considered the universal recipient?
a it has both antibodies in the plasma.
b it has no antibodies in the plasma.
c it has no antigens on the red blood cells.

Explanation:

Blood type is determined by antigens on red blood cells and antibodies in plasma. For a successful blood transfusion, the recipient's antibodies should not attack the donor's antigens. Type AB blood has A and B antigens on red blood cells. But crucially, it has no anti - A or anti - B antibodies in the plasma. So, when receiving blood from donors of other blood types (A, B, AB, or O), there are no antibodies in the AB recipient's plasma to react with the donor's antigens (since the only possible antigens are A and/or B, which the AB recipient already has on their own red blood cells and no antibodies against them).

Answer:

B. It has no antibodies in the plasma.