Question

If blood is in short supply, which blood type would be the most beneficial to have on hand if someone needed a blood transfusion?

Answer 1

Blood type o- can donate to anyone because it has no antigens on it so anyone can safely receive it therefore it is the universal donor
In short the answer is blood type o-
Hope this is helpful

Answer 2

O blood is called the UNIVERSAL BLOOD DONOR as they can give to any other blood type.