The genotypes of a Husband and Wife are $I^A I^B$ and $I^A i$. <br> Among the blood types of their children, how many different genotypes and phenotypes are possible?

Question

( A ) 3 genotypes ; 4 phenotypes
( B ) 4 genotypes ; 3 phenotypes
( C ) 4 genotypes ; 4 phenotypes
( D ) 3 genotypes ; 3 phenotypes