A. A president leaves office, and a political rival is elected. B. A legislator resigns, and the country elects a replacement. C. A queen dies, and her son becomes king. D. Ageneral seizes power and establishes a military state. Please select the best answer from the choices provided. A B C D

The best answer from the choices provided is C. A queen dies, and her son becomes king.<br /><br />This scenario describes a peaceful transfer of power within a royal family, where the heir apparent (the son) becomes the new ruler after the death of the previous monarch (the queen). This is a common and expected succession process in a constitutional monarchy, where the next in line to the throne assumes the throne after the previous monarch's passing.<br /><br />The other options do not accurately describe a peaceful and lawful transfer of power:<br /><br />A. A president leaving office and a political rival being elected is a democratic process, but it does not necessarily imply a peaceful transfer of power.<br />B. A legislator resigning and the country electing a replacement is not a transfer of executive power, but rather a change in the legislative branch.<br />D. A general seizing power and establishing a military state describes a coup d'état, which is an illegal and forceful takeover of the government, not a peaceful transfer of power.<br /><br />Therefore, option C is the best answer, as it accurately describes a peaceful and lawful transfer of power within a royal family.