What is the main purpose of a living will?

A living will primarily serves to articulate an individual's preferences regarding medical treatment in the event that they become unable to communicate their wishes. This form of advance directive is particularly relevant when a person is facing terminal illness or an irreversible condition, as it allows them to specify the types of medical interventions they do or do not wish to receive, such as life-sustaining measures.

While the correct answer discusses the role of the living will in the context of terminal illness, it specifically focuses on how it helps to clarify the individual’s healthcare preferences, which in turn can provide guidance and alleviate the decision-making burden on family members during difficult times. By documenting these wishes, a living will can prevent family members from making emotionally charged decisions without knowing the patient's desires.

The other options, while relating to aspects of healthcare planning, do not directly capture the essence of a living will's purpose. Legal authority to healthcare providers is usually established through a power of attorney or similar legal documents, rather than a living will. Organ donation requests are typically included in separate documents or forms, and financial asset organization is outside the scope of a living will's intent, which is strictly dedicated to healthcare decisions.