Which hormone has an action opposite to the action of insulin?

Question

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Glucagon is a hormone produced by the pancreas that raises blood sugar levels by stimulating the liver to release stored glucose. Its action is opposite to insulin, which lowers blood sugar levels by promoting the uptake and storage of glucose in cells. Glycogen is a storage form of glucose in the liver and muscles, while hemoglobin A1c is a measure of average blood sugar levels over several months, and adenosine triphosphate is a molecule used for energy storage and transfer in cells, none of which have an opposite action to insulin.

Which Hormone Has an Action Opposite to the Action of Insulin