Who Is Advocating Age-Based Rationing of Care (As Described in the Text)

Who is advocating age-based rationing of care (as described in the text) ?

A) Sten, who believes society shouldn't waste billions of dollars on heroic, cure-oriented interventions in old-old people
B) Setimba, who believes that old-old people should be allowed to end their lives
C) So Luu, who believes society shouldn't waste billions of dollars on heroic cure-oriented treatments in people over fifty
D) Sabri, who believes that people over 50 should be allowed to end their lives