Lower extremity peripheral arterial disease management

A 62-year-old male with a history of smoking and hypertension presents with complaints of leg pain triggered by walking, which resolves with rest. This patient has been diagnosed with peripheral arterial disease and exhibits intermittent claudication. Which of the following interventions is most effective in increasing pain-free walking distance and total walking distance in this patient?

1: Immediate surgical intervention
2: Antiplatelet monotherapy
3: Supervised exercise program
4: Palliative care