Justin caught the flu and was urged by his employer to take a few days off to recover. However, on the third day of missing work, Justin's employer sees him at lunch with some friends. His employer approaches him and Justin suggests he's still very sick and will need a few more days to recover. Justin tells his employer he has not seen a doctor or taken any medicine. Justin is not fulfilling his duties as part of the

A) doctor-patient relationship.
B) medicalization of health.
C) social/medical interactionism.
D) sick role.