Here are the answers for the questions you've provided:
6. **B) Samuel Gompers/AFL**
- Samuel Gompers was a labor leader who advocated for workers' rights and fair labor conditions, which fits the context of ensuring that workers’ conditions were fair, particularly in demanding industrial environments like glassworks.
7. **A) the development of the Bessemer steel-making process**
- The Bessemer process allowed for the mass production of steel, which was essential for building railroads, leading to the rapid growth of the railroad industry.
8. **B) Workers received more vacation time.**
- This statement is NOT correct as industrialization in the late nineteenth century often resulted in workers having longer hours and less time off, rather than more vacation time.
9. **D) The federal government believed that it had the right to determine where American Indians lived and to regulate their way of life.**
- This statement best describes the federal government's attitude during periods of western expansion, as it often disregarded Native American sovereignty and rights in favor of settlement and resource extraction.