Can you help me with the now predict

Need will give brainliest which of the following was the most significant aspect of revel's election to the senate?

Why might collective bargaining fail, causing a union to go on strike? a the union agrees with the boss about wages. b the boss compromises about work hours. c the factory goes out of business, causing the workers to lose their jobs. d the boss refuses to address dangerous working conditions in the factories.

Compare and contrast the civil rights act of 1964 and the civil rights act of 1991