Final answer:
John D. Rockefeller, Andrew Carnegie, and other business tycoons were considered Robber Barons due to their monopolistic practices, unethical behavior, and charitable contributions.
Step-by-step explanation:
The actions by John D. Rockefeller, Andrew Carnegie, and other business tycoons that would suggest they were worthy of being called Robber Barons include:
- Developing a monopoly in their industries.
- Engaging in unethical business practices.
- Making donations to charitable causes.
These actions demonstrate the concentration of power and wealth, the exploitative business practices, and the philanthropic efforts of these individuals.
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