Q.
A man whose blood group is not known meets with a serious accident and needs blood transfusion immediately. Which one of the blood groups mentioned below and readily available in the hospital will be safe for transfusion?
[A]
O, Rh-
[B]
O, Rh+
[C]
AB, Rh-
[D]
AB, Rh+
Answer & Explanation
Option: [A]