Do you think an advocate of judicial restraint would support a narrow interpretation of the constitution or a broad interpretation

I believe the answer is: It would be narrow

Judicial restraint is the view that encourages encourages judges to limit the exercise of their own power. This would force the judge to interpret the constitution limited to only things that explicitly written in the constitution, without any chance to make adjustment to changing norms or technology.

answer; conditional stimulus will trigger a conditioned response;