The correct answer is D. Courtecy. The correct spelling is courtesy.
Democracy is a form of government in which the people hold power. Aristocracy is a form of government in which power is held by a small group of people who are considered to be the best qualified to rule. Advocacy is the act of supporting or recommending a cause or policy.
Courtecy is a polite or considerate act or behavior. The word "courtecy" is often misspelled as "courtesey." The correct spelling is courtesy.