Final answer:
The best intervention by the nurse to motivate a patient newly diagnosed with hypertension to learn about the prescribed treatment plan would be to 3) encourage the patient to learn about various treatment options.
Step-by-step explanation:
The best intervention by the nurse to motivate a patient newly diagnosed with hypertension to learn about the prescribed treatment plan would be to encourage the patient to learn about various treatment options. By providing the patient with information about different treatment options, they can become empowered and actively participate in their own healthcare. This can increase their motivation to learn about the prescribed treatment plan.