Which of the following interventions is most important for a nurse to implement in the care plan of a patient with Chronic Obstructive Pulmonary Disease (COPD) to promote effective breathing?

instruct the patient to avoid all physical activity to prevent shortness of breath.

Recommend a high-carbohydrate diet to increase energy levels

Encourage the patient to perform pursed-lip breathing exercises.

Advise the patient to drink less water to prevent fluid overload.