Concept:A misspelled word is identified by comparing it with the standard correct spelling.Explanation:The word "Calender" in option C is incorrect.The correct spelling is "Calendar", which means a system for organizing days by weeks and months.All other words are correctly spelled: Harass means to pressure aggressively, Government means the ruling body, and Permanent means lasting indefinitely.Answer:Option C (Calender) is wrongly spelled.