All of These Individuals Are Over 70 Years Old

All of these individuals are over 70 years old. Who is most likely to be most satisfied with his or her life?

A) Sergi, who has a close relationships with one of his sons
B) Diana, who has close relationships with all six of her children
C) Karl, who has a close relationship with one friend who is not a member of his family
D) Ernest, who has a close relationship with many friends who are not members of his family