When Bayliss and Starling Conducted Experiments to Determine What Caused

When Bayliss and Starling conducted experiments to determine what caused secretion of pancreatic juice, they

A) cut the blood supply to the upper digestive tract.
B) added acidic food to the small intestine and got secretions of pancreatic juices.
C) cut the nerve supply to the upper digestive tract.
D) got a response from the pancreas using extracts of cells lining the intestinal tract.
E) did all of these except "cut the blood supply to the upper digestive tract."