Final answer:
The heading that best fits in the empty box to the right is 'd) Judges', as the provided text emphasizes their role in the common law system and law-making process. Option d) is correct.
Step-by-step explanation:
Based on the context provided, where judicial systems and common law are discussed, it appears that the focus is on the judiciary's role in interpreting and developing law through case decisions. Given that the judiciary is a central theme in the excerpts provided, and they emphasize the role of judges in the common law system, option 'd) Judges' would best fit the empty box to the right as it relates directly to the topic at hand.
Moreover, the information underlines that judges not only apply the law but also participate in the law-making process through their interpretations, differentiating it from code law systems where judges have limited interpretive roles.