Consider a woman who is a carrier of a recessive X-linked allele for hemophilia. Which of the following possibilities could explain the presence of the hemophilia allele in her genotype?

• A. Either her mother was homozygous dominant or her father had hemophilia.
• B. Both her mother and her father had hemophilia.
• C. Either her mother was a carrier or her father had a dominant allele.
• D. None of the listed responses is correct.
• E. Either her mother was a carrier or her father had hemophilia.