Final answer:
Blood type O negative (O-) is the universal donor because it lacks A and B antigens and can be donated to any blood type. Blood type AB positive is the universal recipient as it can accept any blood donation. The correct option is c. Blood type AB
Step-by-step explanation:
The blood type that is considered the universal donor is blood type O negative (O-). This blood type is capable of being donated to individuals of any other ABO blood type because it lacks both A and B antigens on the surfaces of the erythrocytes (red blood cells), which means it is less likely to cause an immune reaction in the recipient.
Additionally, being Rh-negative means it can be safely received by both Rh-positive and Rh-negative individuals. In contrast, blood type AB positive is known as the universal recipient because it can accept blood donations from any blood type, due to the presence of both A and B antigens on the erythrocytes and no anti-A or anti-B antibodies in the plasma. The correct option is c. Blood type AB