Universal donor is:
Grade :10

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Group AB

Group O

Group B

Group A

answer is B.

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Detailed Solution

Concept: Blood group type O negative blood has the lowest chance of generating significant responses in the majority of recipients during emergency transfusions. It is referred to as the universal blood donor type as a result.
A person with blood type O and Rh factor negative is regarded as a universal donor since their blood may be transfused to anyone. Individuals with blood type O lack both A and B antigens on the surface of their RBCs. They contain antibodies A and B in their blood. The RBC lacks the Rh protein. A universal acceptor is someone who has the AB blood type and is Rh positive.
Hence, the correct option is 2.

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