Final answer:
The layoff of a welder due to a machine replacing manual labor is an example of the transformation of the workforce through industrialization and mechanization.
Step-by-step explanation:
The subject of this question falls under Social Studies. The layoff of a welder due to the company's purchase of a machine for welding is an example of how industrialization and mechanization have transformed the workforce.
In the past, skilled artisans like carpenters and watchmakers were required to create custom products, but with the rise of factories and assembly lines, unskilled workers could perform repetitive tasks that were easier and cheaper to automate.