Concept:The idiom "bury the hatchet" means to stop fighting and make peace.Explanation:The phrase comes from an old custom where enemies buried their weapons in the ground to show that the war was over.When Foli and Asare "decided to bury the hatchet," they agreed to end their disagreement.This action means they chose to forgive each other and become friends again.Answer:C. end their quarrel and become friends again