The Following Figure Contains a Pedigree for Cystic Fibrosis,an Autosomal

The following figure contains a pedigree for cystic fibrosis,an autosomal recessive disorder.Which of the following is true?

A) At least two of the members of Generation I are carriers of cystic fibrosis.
B) None of the members of Generation II is a carrier of cystic fibrosis.
C) Individual 2 in Generation II has cystic fibrosis.
D) The cystic fibrosis gene is found on a sex chromosome.