This pedigree shows the pattern of children with albinism in a family. If two carriers have children, the probability of the couple having a child with albinism equals 1/4 and the probability of having a child without albinism equals 3/4. In this case, what is the probability that a couple will have a first child with albinism and then have a second child without albinism? 1/4 X 3/4, 1/4 + 3/4, 1/4 + 1/4