Glucagon is a hormone that is released by the pancreas in response to falling blood glucose levels. The release of glucagon is part of a negative feedback mechanism. Based on that information, what effect would you expect glucagon to have on the body?

• A. Glucagon signals the liver to break down glycogen and release the resulting glucose into the bloodstream.
• B. Glucagon signals the liver to stop all glycogen breakdown and synthesis to try to maintain glucose levels. 
• C. Glucagon signals the liver to remove glucose from the bloodstream and store it as glycogen.
• D. Glucagon signals the small intestine to reduce absorption of glucose into the blood.