The Florida code of judicial conduct requires that "A judge shall hear and decide matters assigned to the judge except those in which disqualification is required." What does that mean? a) That the judge must excuse him- or herself if there is a reason they cannot be impartial. b) That the judge must excuse him- or herself if they cannot conduct all the duties expected in the trial. c) That the judge must excuse him- or herself if the public demands they not try the case. d) That the judge must excuse him- or herself if they know the lawyers in the case.