Question

A woman of blood type A marries a man with blood type O. The woman's mother had blood type B and her father had blood type AB. The man's mother had blood type B and his father had blood type A. What is the genotype of the woman's mother?
a) AO
b) BO
c) AA
d) BB
e) AB
f) O

Answer 1

I think the answer is b

Answer 2

It should be e) Genotype AB