// Contract: this behavior owns only the homepage example, never saved progress.
// Choosing clears stale feedback. Checking distinguishes a missing, correct,
// or incorrect choice. Native disclosure remains if the runtime cannot mount.
#try-a-question !as(sample) {
  selected: '';
  enhanced: false;
  fallback: true;
  needsChoice: false;
  correct: false;
  incorrect: false;
  answered: false;

  construct {
    sample.enhanced = true;
    sample.fallback = false;
  }

  choose(choice) {
    sample.selected = choice;
    sample.needsChoice = false;
    sample.correct = false;
    sample.incorrect = false;
    sample.answered = false;
  }

  checkAnswer() {
    sample.needsChoice = sample.selected == '';
    sample.correct = sample.selected == 'b';
    sample.incorrect = sample.selected != '' && sample.selected != 'b';
    sample.answered = sample.correct || sample.incorrect;
  }
}