Practice question

A 58-year-old man presents with chronic cough and weight loss. He is a long-term smoker. Chest X-ray shows a right upper lobe mass. Before disclosing the suspected diagnosis, the physician recognises the need for an organised, empathetic discussion. According to CanMEDS, which role is most directly demonstrated by careful planning of this conversation, including assessing the patient's preferences for information and involving family as desired?