Answer:
D. Preventing falls.
Step-by-step explanation:
If they were preventing s.u.i.c.i.d.e, they would be asking questions about hopelessness, or if the patient felt like they were better off d.e.a.d. If they were trying to prevent misidentification, they would be asking the patient if they knew their family members, what car they drive, etcetera. If they were trying to prevent infections, they would ask the patient if they had any bleeding, discharge, difficulty breathing, etcetera.