Question

Most national unions in the United States are linked with the ________, an association that seeks to improve the shared interests of its member unions at the national level.

Answer 1

C) American Federation of Labor and Congress of Industrial Organizations (AFL-CIO)

Step-by-step explanation:

The American Federation of Labor and Congress of Industrial Organizations was established in 1955 when the American Federation of Labor (AFL) and the Congress of Industrial Organizations (CIO) merged together. It is the largest union federation in the US and it is formed by fifty-five national and international unions. It has approximately 12.5 million members.