A Nurse Performed These Actions While Caring for Patients in an Inpatient

A nurse performed these actions while caring for patients in an inpatient psychiatric setting. Which action violated patients' rights?

A) Prohibited a patient from using the telephone
B) In patient's presence, opened a package mailed to patient
C) Remained within arm's length of patient with homicidal ideation
D) Permitted a patient with psychosis to refuse oral psychotropic medication