Which statement best describes the tone used by the speaker in "The Killers in Our Midst"?%0D%0A%0D%0AA.%0D%0AThe speaker, while a bit nervous and unprepared, is consistently overdramatic.%0D%0A%0D%0AB.%0D%0AThe speaker consistently uses a formal and professional tone throughout the speech.%0D%0A%0D%0AC.%0D%0AThe speaker begins the speech with a nervous tone and then becomes more confident.%0D%0A%0D%0AD.%0D%0AThe speaker covers a wide range of tones, from sarcastic to tragic to laid-back.