I think the answer is B; that’s assuming that the other allele of the heterozygous brown eyed man is coding for blue eyes. If it’s not then my answers wrong. Tell me if you don’t understand or you need a step by step explaination
BB or Bb because brown eyes are dominant and blue eyes are recessive.
I’m not sure what your asking. But if you have 2 different alleles of a gene it will be heterozygous