Final answer:
The author believes that individuals tend to migrate, based on the discussion of industry movement and urbanization, as workers seek better prospects and continual growth.
Step-by-step explanation:
The question asks us to infer the author's beliefs about people's natural tendencies based on the discussion of the movement of industry. From the provided text, it can be inferred that the author believes people have a natural tendency to migrate. This inference is drawn from passages discussing urbanization, the movement from rural to urban areas for better opportunities and jobs, the pull towards urban centers during the process of industrialization, and the pattern of employees seeking continual training and retraining as economies grow and societal organization changes. Examples of this include displaced rural farmers moving to cities and a workforce that adapts by moving where economic opportunities are present.