Final answer:
Glucagon opposes the actions of insulin and epinephrine.
Step-by-step explanation:
The correct answer is A) glucagon...insulin and epinephrine. Glucagon opposes the actions of insulin and epinephrine. Insulin is a hormone that lowers blood glucose levels by promoting glucose uptake by cells and liver glycogen synthesis, while epinephrine also helps regulate blood glucose levels by promoting glycogen breakdown and the release of glucose from the liver.