The science of adjusting environments, tasks, or procedures to fit the individual is ERGONOMICS. In other words, it is also defined as the study of a worker's efficiency in a workplace and how this efficiency can be improved together with the well-being of the worker.
Based on the reading, Upton Sinclair would most likely agree that the government must have a role in regulation of the <span>meatpacking companies.</span>
Answer: C
Explanation:
Achieving Equality for African Americans
employers used two tactics against works: yellow-dog contracts and blacklisting. Yellow dog contracts is an agreement between the worker and employer where the worker agrees to certain conditions of employment as well as to not be a member of any labor union.
You didn't list any answer choices, but I assume the answer is the Prefecture of Africa