What were the two main reasons workers formed unions?
a) as a form of social protest and to protect themselves from poor work conditions.
b) for a social group and to protect themselves from poor work conditions.
c) for a social group and to strike if they didn't get what they wanted.
d) as a form of social protest and to strike if they didn't get what they wanted.

B is our answer.

They wanted to do it for social groups and needed to protect themselves from poor unions. Also if this was not formed they would keep getting bad work conditions. Those are the main reasons on why workers formed unions.  

in the 1950s, country music came into its own before rock-n-roll took off in the 60s while jazz and classical music continued to innovate

i believe it's that they cared for people. hope this ! : )