The best and most correct answer among the choices provided by your question is the fourth choice or letter D.
Their authority to restrict Gertrude <span>to the house is based on coercion because of Gertrude's wrongdoings.</span>
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Gertrude has misbehaved, and her parents have told her she will not be allowed to go outside and play for two days. Their authority to restrict Gertrude to the house is based on C. Tradition. A tradition is a belief or behavior passed down within a group or society with symbolic meaning or special significance with origins in the past.