Final answer:
People at lower, middle, and upper hierarchical levels all have power.
Step-by-step explanation:
Regarding power, people at lower, middle, and upper hierarchical levels all have power. The upper class, due to their social status, not only have power and control over their own lives but also over the lives of others. The middle class exerts control over their own lives, while the lower class has little control over their work or lives.