Question

a person with blood type ab can receive blood from
a ab and o.
b a, b, ab and o.
c ab only.
d a and b.

Explanation:

Blood type AB has both A and B antigens on red blood cells and no antibodies against A or B in the plasma. So, it can receive blood from donors with blood types A (which has A antigens), B (B antigens), AB (A and B antigens), and O (no A or B antigens).

Answer:

B. A, B, AB and O.