The answer to the question above is letter B. In humans, having freckles is the result of a dominate gene and not having freckles is a recessive trait. If the freckled man is homozygous and the woman doesn't have freckles then the child would have freckles.
From reasoning and analyzing evidence. Hope this helped :D
Because DNA having cross over can cause differentiation.
Same genus is more closely related. The farther down the list Phylum-Class-Order-Family-Genus-Species you go, the more closely related are the species in that taxon.