It is C as to have freckles you have to have a dominant and recessive gene (can be worked out using a punnett square) as the child has 50% of not having freckles like his dad or 50% having freckles like his mom. male genes(homozygous recessive) f f
female F Ff Ff genes f ff ff
so ff is not having freckles and being homozygous recessive, or Ff having freckles and being heterozygous.