Which of the Following Is Kathleen Christensen's Critique of Disengagement

Which of the following is Kathleen Christensen's critique of disengagement theory?

A) Older people cannot withdraw from their social roles as consumers if they are to maintain their physical existence, which renders the rest of the argument irrelevant.
B) Older people have better things to do than to prepare themselves for death.
C) With the current demographic profile of North America, if senior citizens were to withdraw from their social roles, there would not be enough younger people to fill those roles.
D) Older employees do not want to end their working days as minimum-wage jobholders engaged in activities unrelated to their career jobs.