Final answer:
The king cautions against the subversion of justice and the power of bribery in breaking his decree.
Step-by-step explanation:
The correct answer is A) subversion of justice. In the passage, the king cautions against the subversion of justice, which refers to the act of undermining or overthrowing the principles of fairness and equity in the legal system. The king warns about the dangers of bribery and how it can lead to the breaking of his decree, emphasizing the importance of upholding justice and integrity.