Problem: A 65-year-old woman with hypertension and osteoarthritis presents to the clinic with worsening epigastric pain over the past 3 weeks. Her pain is worse with eating, and she reports dark stools. She denies nausea or vomiting. Her medications include daily amlodipine and ibuprofen, which she has been taking 3 times a day for the past 4 months for joint pain. On physical exam, the patient's vitals are within normal limits. She has epigastric tenderness but no guarding or rebounding. Her stool is guaiac-positive. Which of the following diagnoses is most likely in this patient? Need Assignment Help? A. Functional dyspepsia B. Inflammatory bowel disease C. Viral gastroenteritis D. Peptic ulcer disease