Answer: D. fair trial.
Step-by-step explanation:
The right to a fair trial means that it should be observed by an impartial judge. A fair trial is explicitly declared in Article 10 of the Universal Declaration of Human Rights, as well as in the Sixth Amendment to the United States Constitution, and Article 6 of the European Convention of Human Rights. However, there is no international law that determines what a fair trial is, so procedures vary for each nation.