When type B agglutinogen is not present on the surface of RBC of a person, his plasma would contain ____ agglutinins

Q. When type B agglutinogen is not present on the surface of RBC of a person, his plasma would contain ____ agglutinins.

A.            Anti-a

B.            Anti-b

C.            Both anti-a and anti-b

D.            None

Answer: Anti-b