<image 1> Which of the following was another common criticism of Andrew Carnegie?
['As an immigrant, Carnegie had no right to own controlling interests in major American industries.', 'Carnegie did nothing to prevent the use of violence against his workers when they asked for better wages and working conditions.', 'Carnegie was seen as the epitome of American success, but he was not even the richest man in America.', "Too much of Carnegie's philanthropic efforts were concentrated on his homeland of Scotland, denying Americans the benefits of his charity."]
Workers went on strike at Andrew Carnegie's Homestead Steel plant near Pittsburgh in 1892. Carnegie and his operations manager Henry Clay Frick hired the Pinkerton Detective Agency to defend the plant and the newly hired non-union workers. The strikers and the Pinkertons clashed violently, with the striking workers winning the battle. Pennsylvania state militia later arrived to restore order, allowing Frick to reopen the plant with the non-union workers.