A Married Couple Are Residents of a Life Care Community

A married couple are residents of a life care community.They retired to the community after the husband had heart surgery.The wife has always been physically and socially active and joined an aerobic class,knitting groups,and a book club shortly after moving to the community.She walks on a daily basis and swims twice a week.Her husband spends his days reading and watching television.He was never a social person and enjoys being by himself.Which of the sociological theories of aging best describes the couple?

A) Role theory
B) Disengagement theory
C) Continuity theory
D) Personality theory