In terms of labor law, which of the following options is a consequence of the Haymarket bombing in 1886:
a) It encouraged the central government and congressmen to immediately pass the Fair Labor Standards Act.
b) It undermined claims for better labor rights, such as the eight-hour day of work.
c) It triggered massive strikes and violence from workers of different backgrounds against policemen.
d) It proved the frustrations of the working class against labor conditions.
