Final answer:
Ethical decision-making is the best model for the situation. It involves considering the moral implications and consequences of different options.
Step-by-step explanation:
The decision-making model that would be best for the situation described, where a nurse encourages patients to be involved in their care and uses the disadvantages of specific treatment options with patients, is ethical decision-making. Ethical decision-making involves considering the moral implications and consequences of different options. By exploring the benefits and disadvantages of specific treatment options, the nurse is taking into account the ethical considerations of each choice. This allows the nurse to make informed decisions that align with the patient's best interests.