21. Why did the McDonald brothers mainly refuse to open more restaurants? A. They were tired of running restaurants. B. They did not want the company to get too large. C. They did not want the responsibility. D. They did not trust Ray Kroc.

The McDonald brothers were genuinely passionate about their original restaurant in San Bernardino, California. They prioritized quality over quantity and believed that expanding too rapidly could lead to a decline in the standards and consistency they had worked hard to establish. This dedication to their original vision was a key reason for their reluctance to open more locations. Additionally, when Ray Kroc entered the picture, he saw the immense potential for growth that the brothers couldn't fully embrace. Kroc’s enthusiastic vision for expansion contrasted sharply with the brothers’ cautious approach, leading to a pivotal partnership that changed the fast-food landscape forever. Thus, what began as a local eatery transformed into an international empire, though not without some underlying tensions.