Final answer:
The triple combination for treating peptic ulcer disease should be in the order of antibiotics, bismuth salts, and proton pump inhibitors.
Step-by-step explanation:
The triple combination for treating peptic ulcer disease should be in the order of Option 3: Antibiotics, bismuth salts, and proton pump inhibitors. Antibiotics are used to treat the infection caused by H. pylori, while bismuth salts help with reducing symptoms and aiding in healing. Proton pump inhibitors are used to decrease acid levels in the stomach to create an environment less favorable for H. pylori.