Which of the following is true? Select one: a. The majority of abdominal aortic aneurysms originate above the renal arteries. b. An acute rise in gamma GT enzyme levels associated with a less dramatic rise in AST levels is consistent with both biliary obstruction and alcoholic liver disease. c. Over half the cases of pancreatitis are associated with gallstones. d. Faecal vomiting associated with bowel obstruction cannot occur in a patient who has had a Whipples procedure e. the presence of bowel sounds excludes bowel obstruction as a diagnosis. Please provide a reference I need the answer Ann the reason why you choose it no need for essay