unions sought to improve workers pay and working conditions by\n○ hiring security guards to keep costs…

unions sought to improve workers pay and working conditions by\n○ hiring security guards to keep costs low.\n○ setting up an apprentice system.\n○ negotiating with employers.\n○ working together in company towns.

unions sought to improve workers pay and working conditions by\n○ hiring security guards to keep costs low.\n○ setting up an apprentice system.\n○ negotiating with employers.\n○ working together in company towns.

Answer

Brief Explanations:

Unions use collective - bargaining, which involves negotiating with employers to improve workers' pay and working conditions. Hiring security guards is not related to improving pay and conditions. An apprentice system is more about training. Working together in company towns doesn't directly address pay and conditions improvement like negotiation does.

Answer:

negotiating with employers.