During an Admission a Nurse Suspects a Patient Is Having

During an admission a nurse suspects a patient is having suicidal ideations.The best course of action is to:

A) ask the patient if thoughts of suicide have occurred.
B) ask the patient's significant other if the patient is suicidal.
C) arrange for involuntary commitment to avoid harm to self or others.
D) avoid the subject to avoid pushing the patient into further thoughts of self-harm.