Question : A person having blood type B could safely donate blood to persons with blood types
Option 1: A and O
Option 2: B and O
Option 3: A and AB
Option 4: B and AB
Correct Answer: B and AB
Solution : The correct option is - B and AB
A person with blood groups B and AB can receive red blood cells from group B. Red blood cells from Group A can be given to A and AB. Group O is the universal donor, able to provide red blood cells to anyone and group AB is the universal recipient.