Judicial activism typically implies that courts are willing to interpret the Constitution and laws in a way that can lead to changes in policy, often stepping beyond mere interpretation to influence social and political issues. Therefore, the most fitting response among the options you've provided is:
The court will rule on the actions of the other branches or judicial precedent.
This choice reflects the proactive role that judicial activism can play, where courts may challenge or override legislative and executive actions based on their interpretations of the law or the Constitution.