Final answer:
Rock and roll blurred racial lines and led to advancements in ending segregation across the nation by influencing social interactions and encouraging record companies to sign black musicians.
Step-by-step explanation:
Culturally and socially, rock and roll was responsible for blurring racial lines. It had an overwhelming influence on social interactions and intermingling of black and white teenagers in the 1950s.
Even record companies who were reticent to sign black musicians at first, succumbed to economic demand because the music was so popular and profitable.
And with a giant step in ending segregation in 1954 with the Brown v. Bd. of Education of Topeka Kansas Supreme Court's ruling that separate was not equal, records from both black and white artists were sold in the same record stores and black and white artists were signed to the same record labels.
And thanks to television, specifically shows like the Ed Sullivan Show and American Bandstand, black and white teenagers interacted socially increasing the chances that their generation would break barriers of prejudice as they ascended into adulthood. Rock and Roll also brought people together,