Which of the Following Best Describes the Rule of Law

Which of the following best describes the rule of law?

A) a condition in which government authority is exercised only in accordance with written laws
B) a condition in which government authority is exercised only insofar as the people approve of each such exercise
C) a condition in which the ruling classes can act as they want in any individual case
D) a condition in which the ruling classes can only act as international law permits