A 63-Year-Old Man with a Long History of a Duodenal

A 63-year-old man with a long history of a duodenal ulcer was seen in the emergency department after vomiting blood-stained fluid and exhibiting all the signs and symptoms of severe hypovolemic shock.
-The following statements concerning duodenal ulcers could apply to the patient's condition except which?

A) Hemorrhage from a duodenal ulcer often reveals itself by the passage of black stools on defecation.
B) The pyloric sphincter prevents most of the blood from the duodenal lumen from passing up into the stomach.
C) The gastroduodenal artery lies behind the first part of the duodenum and was probably eroded by the ulcer.
D) The gastroduodenal artery is a small branch of the hepatic artery.
E) The duodenal ulcer was most likely to be situated on the posterior wall of the first part of the duodenum.