Question

national unions differed from local unions in that national unions
○ included workers from different industries.
○ did not support the eight - hour work day.
○ refused to use strikes as a way to achieve their goals.
○ excluded craft union members and skilled workers.

Explanation:

To solve this, we analyze each option:

• Option 1: National unions typically organized workers across different industries, while local unions were more industry - or region - specific. This matches the nature of national unions.
• Option 2: Many national unions supported the eight - hour workday, so this is incorrect.
• Option 3: National unions did use strikes as a tool to achieve their goals, so this is wrong.
• Option 4: National unions often included craft union members and skilled workers, so this is incorrect.

Answer:

A. included workers from different industries.