The option B is correct..
Answer: 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
D. Your body stores it as insulin
A,B,C,D I'm pretty sure, but check with others who answer the question too.
It is called the "climax community"