Question

A person with blood group $B^{+}$ met with an accident and loses a lot of blood. Which pair of individuals can donate blood to him?

• A. $A{B}^{+},B^{+}$
• B. $A{B}^{-},A^{-}$
• C. $A^{+},B^{-}$
• D. $O^{+},B^{-}$

Answer 1

The correct option is D $O^{+},B^{-}$

• the recipient can only get blood from a person carrying O, B antigen with or without Rh factor(+/-)
  .
• So, the correct option is 'O+, B−'.