Final answer:
A living will is an advanced directive that describes the treatment a resident wishes to receive at the end of their life. It can include a Do Not Resuscitate (DNR) order.
Step-by-step explanation:
An advanced directive which describes the treatment a resident wishes to receive at the end of their life is a Living Will (option A). A living will is a written legal document that details specific interventions a person wants, such as whether they want life-extending treatments or not. It can also include a Do Not Resuscitate (DNR) order, which states that medical personnel are not to revive or resuscitate the patient if their heart stops or they stop breathing.