Concept: The rule of law means no one is above the law, and its significant companion is the supremacy of the ordinary law.Explanation: The rule of law ensures that every person and every authority is subject to the law. A major companion of this idea is the supremacy of the ordinary law, which means all individuals and state officials must obey the same ordinary laws. It also implies that no one should be punished except for a clear breach of the law through regular courts. This makes the law supreme over all, including the legislature and executive.Answer: B. supremacy of the ordinary law