The 12-bar blues took on a second life in the 1950s with the creation of ... A. Country music
B. Electric blues
C. Rock ‘n’ roll
D. Jazz

According to the article in wiki answer, digital communication systems have more benefits than analog systems. they are faster and more flexible, and they offer better performance than analog communication

What does scenery tell us about a play

This is a type of government in which a group of individual states are united under astrong, central government.