Although Eamily Carries the Gene for Hemophilia, She Does Not

Although eamily carries the gene for hemophilia, she does not suffer from the disorder. This is because

A) the active allele for hemophilia is dominant and she has the recessive allele.
B) the disorder is due to a sex-influenced gene, not a sex-linked gene.
C) while she carries an allele for the disorder on the X chromosome, she also carries an allele for normal blood clotting on the Y chromosome.
D) while she carries an allele for the disorder on one X chromosome, she also carries an allele for normal blood clotting on the other X chromosome.
E) while she carries an allele for the disorder on the Y chromosome, she also carries an allele for normal blood clotting on the X chromosome.