Concept:Spelling errors often occur when letters are doubled incorrectly. The word "exaggerate" requires two G's, but the given option uses only one.Explanation:Examine each option for spelling accuracy.Option A: "Exagerate" is wrong. The correct spelling is "Exaggerate" (meaning to overstate).Option B: "Leisure" is correct. It means free time or rest.Option C: "Colleague" is correct. It means a work associate.Option D: "Maintenance" is correct. It means keeping something in good condition.Only option A has a spelling mistake. The missing "g" is a common error.Answer:Option A. Exagerate