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. $I^{B}i/I^{A}i/ii$ B. $I^{B}I ^{B}/I^{A}I ^{A}/ii$ C. $I^{A}I ^{B}/iI^{A}/i^{B}i$ D. $I^{A}i/I^{B}i/I^{A}i$ E. $iI^{B}/iI^{A}/I^{A}I ^{B}$ Choose the most appropriate answer from the options given below