Which of the following would be considered a carrier of a sex-linked recessive defect?

Which of the following would be considered a
  carrier of a sex-linked recessive defect?
 
  a. a man with the defect
  b. a woman with the defect
  c. a father of a son with the defect
  d. the normal daughter whose father had the
  defect
  e. a son of two unaffected parents

Question 2

Males more commonly are affected by Xlinked
  recessive genetic disorders than are
  females because
 
  a. females have two X chromosomes and thus
  less of a chance to be recessive.
  b. males have only one X and thus more of a
  chance to be recessive.
  c. males have only one X, they have multiple
  alleles for each gene.
  d. Y chromosomes cause X gene mutations.
  e. males are weaker genetically than females