A Retrospective Analysis Is Exemplified When

A retrospective analysis is exemplified when:

A) researchers ask college students to write suicide notes to study what students think is the motivation for suicide.
B) therapists who had patients who committed suicide are interviewed to gain information on suicide.
C) a school implements a postvention program after several student suicides occur in a close time span.
D) individuals who have made suicide attempts are part of a suicide education program.