Final answer:
The birth of rock and roll blurred racial lines and led to advancements in ending certain types of segregation across the nation.
Step-by-step explanation:
The birth of rock and roll played a significant role in blurring racial lines and leading to advancements in ending certain types of segregation across the nation. Rock and roll, which had its roots in rhythm and blues, was predominantly created by Black artists and marketed to Black audiences.
However, it quickly gained popularity among young White people, thanks to new technologies and the efforts of disc jockey Alan Freed. This popularity brought Black and White teenagers together socially, increasing the chances of breaking barriers of prejudice as these generations grew older.