Nancy and Bill Have a Blended Family; They Have Two

Nancy and Bill have a blended family; they have two biological children of their own and each has one child from a previous marriage. What does research predict about each parent's health compared to parents with only biological children?

A) Nancy and Bill will both have reduced longevity
B) Nancy will have greater longevity, Bill will have reduced longevity
C) Nancy will have reduced longevity, Bill well have greater longevity
D) Nancy and Bill will both have increased longevity