A man and woman have a son who is color blind, a recessive sex-linked trait carried on the X chromosome, but neither parent is color blind. The woman is now pregnant with their second child. Which of the following statements is true about the second child?
O A daughter will be color blind because the father is a carrier of the recessive allele.
O A son will be color blind because the mother is a carrier of the recessive allele.
O A daughter will not be color blind because the father is not a carrier of the recessive allele.
O A son will be color blind because the father's mother must have been a carrier for recessive allele.