In recent decades, the class differences in the United States have

The correct answer is C. increased considerably.

In recent decades, class differences in the United States have expanded, with a growing disparity between the wealthy and the poor. Factors such as wage stagnation, rising costs of living, and increasing access to education and technology have contributed to this widening gap, resulting in a society where economic inequality is more pronounced than in the past. If you need more detailed information, feel free to explore additional resources!