What was the main reason the united states government intervened in the great railroad strike of 1877? a)the government took action to end the strike in response to public demands in support of the railroad companies. b)the government sided with the labor unions and sent troops to protect railroad workers. c)the government ended the strike for the purpose of returning thousands of people to work during a time of mass unemployment. d)the government considered railroads to be critical to national security and ended the strike for chiefly economic reasons.