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

The blood group O - is most beneficial to have on hand if someone needs a blood transfusion. This is because this blood group can be transfused into any individual having any blood group. O - can give to any blood group. This blood group does not contain any antigens A or B, and hence doesnot cause any reaction in the body.