Final answer:
The concerns of Mills' sociology about the American power structure and the elite rule-makers of society is true. The concept of the power elite details how a small influential group dictates social policies to maintain their wealth and control.
Step-by-step explanation:
The statement that major concerns in Mills' sociology were the American power structure and elites who make the rules in society is True. Sociologist C. Wright Mills, in his seminal work The Power Elite (1956), introduced the concept of the power elite to describe a small group of wealthy and influential individuals who control much of society.
Mills posited that this group uses their influence to rig social policies in ways that maintain their wealth and authority. Along similar lines, G. William Domhoff suggested that these elites form a subculture with common social patterns, reinforcing their exclusive status and influence through institutions like elite schools and exclusive clubs.