Why Did State and Local Workers-Ranging from Firefighters to Teachers-Protest

Why did state and local workers-ranging from firefighters to teachers-protest in Wisconsin and several other states?

A) They were upset that the government was going to make unions illegal.
B) They feared that the state would force them to join expensive,ineffective unions.
C) They were upset that their jobs were being outsourced to other countries.
D) They feared the loss of their pensions,a reduction in their health benefits,and a loss of their right to collective bargaining.