[Expert Solution]: A 45-year-old man comes to the emergency…

A 45-year-old man comes to the emergency department because of a 1-day history of black, tarry stools. He has also had upper abdominal pain that occurs immediately after eating and a 4.4-kg (9.7-1b) weight loss in the past 6 months. He has no history of major medical illness but drinks 3 beers daily. His only medication is acetaminophen. He is a financial consultant and travels often for work.His partner had a positive urea breath test 2 weeks ago and was prescribed medication. Physical examination shows pallor and mild epigastric pain.Esophagogastroduodenoscopy shows a bleeding 15-mm ulcer in the antrum of the stomach. Which of the following is the strongest predisposing factor for this patient’s condition? Age above 40 years Alcohol consumption Acetaminophen use Work-related stress Helicobacter pylori infection