Question

which of the universal donor blood group ​

Answer 1

O (Negative blood) is the universal donor blood groupas it has the lowest risks of causing serious reactions for most of the people.

Answer 2

Answer:

O negative

For emergency transfusions, blood group type O negative blood is the variety of blood that has the lowest risk of causing serious reactions for most people who receive it. Because of this, it's sometimes called the universal blood donor type.