Which of the following is the purpose of antibiotic therapy in treating peptic ulcers? A. It eradicates H. pylori. B. It inhibits gastric acid secretion. C. It protects the gastric mucosa. D. It neutralizes or reduces the acidity of stomach contents.

### A. It eradicates H. pylori.

## Step1: Identify the cause of peptic ulcers### Peptic ulcers are often caused by the bacterium Helicobacter pylori (H. pylori).## Step2: Determine the role of antibiotic therapy### Antibiotic therapy is used to eliminate the H. pylori bacteria, which is a primary cause of peptic ulcers.## Step3: Evaluate the options### - Option A: Correctly identifies the purpose of antibiotic therapy as eradicating H. pylori.- Option B: Inhibiting gastric acid secretion is not the primary purpose of antibiotic therapy.- Option C: Protecting the gastric mucosa is not the primary purpose of antibiotic therapy.- Option D: Neutralizing or reducing the acidity of stomach contents is not the primary purpose of antibiotic therapy.