9) The most important reason for the growth of labor unions in the latter half of the 19th century was A) the passage of the She
rman Anti-trust Act. B) the creation of the Interstate Commerce Commission. C) the forceful leadership of the newly arriving immigrants. D) the way the workers were treated by big business and big industry.
The most important reason for the growth of labor unions in the latter half of the 19th century was the way the workers were treated by big business and big industry.
