Which of the Following Scenarios Would the Principle of "Equality

Which of the following scenarios would the principle of "equality before the law" be compromised the most?

A) The legislature has the option, under specific circumstances, to ignore the courts.
B) Judicial discretion is tolerated to a certain extent, allowing judges to give different punishments for the same crime.
C) A backlog of cases slows down the judicial process significantly.
D) Supreme Court judges are appointed by each new president, much like members of the executive.