Answer:
The correct answer would be blood group O.
The blood group of a father is A. So, his genotype would be \(I^{A}\)_ (\(I^{A}I^{A}\) or \(I^{A}i\)).
The blood group of a mother is AB. So, her genotype would be \(I^{A}I^{B}\).
The cross would result in the production of offspring with all types of blood groups (A, B, and AB) except O as O is the recessive trait and require homozygous recessive condition (\(ii\)).
