Which of the following statements is most accurate about grandparenthood in the United States?

A) Most grandparents rarely see or talk to their grandchildren regularly, and few describe their relationships as warm and loving.
B) Grandparents who see their grandchildren more often describe themselves as happier than those who see their grandchildren less often.
C) The role of grandmother is narrower and less intimate than the role of grandfather.
D) In recent years, the incidence of custodial grandparenting has increased in all ethnic and socioeconomic groups.

D