As per ABO blood grouping system, the blood group of father is B⁺, mother is A⁺ and child is O⁺. Their respective genotype can be

A. I ^Bi/I^Ai/ii

B. I^BI^B/I^AI ^A/ii

C. I^AI ^B/iI^A/I^Bi

D. I^Ai/I^Bi/I^Ai

E. iI^B/iI^A/I^AI^B

Choose the most appropriate answer from the options given below :