The hormone stimulates the secretion of pancreatic digestive enzymes and stimulates gallbladder contraction.

a. gastrin
b. secretin
c. cholecystokinin
d. somatostatin

option B) Secretin

Explanation:

Secretin is an enzyme formed by the upper intestinal layer and gets transported by blood to the PANCREAS which it stimulates: causing the flow of pancreatic juice, also the flow of bile and intestinal juice but to a lesser extent.

Alongside Gastrin, Secretin is one of the hormones of the Gastrointestinal tract; but their functions differ

Therefore, Secretin is the answer

answer; (phospholipid);