Ralph is writing a report about popular music in america's history. he will collect information about music in the united states from many different sources. one will be a multimedia encyclopedia. when he searches for information in a multimedia encyclopedia, he finds four results. three of the results will ralph, but one will not him. which of these articles will not ralph write his report?
a) "famous american musicians"
b) "music from the roman empire"
c) "jazz in the american south"
d) "music in the american colonies"