How did welles use the medium of radio to change the original story of the war of the worlds? a. he used a narrator to tell the audience about events that had taken place over six years ago. b. he added elements like news bulletins and musical breaks that grabbed the audience's attention. c. he mentioned that the people of earth didn't believe they could be attacked by an alien race. d. he included information about the martians' dying planet and why they had come to earth.