Answer:
The correct answer is B- Regulate big business.
Explanation:
With the Square Deal, President Theodor Roosevelt explained in 1910 that he wanted to change the rules to achieve a more substantial equality of opportunity. These regulations of big business included helping middle class citizens, attacking plutocracy and predatory wealth that resulted in the oppression of wage workers. He also gave labor unions like the one involved in the Coal strike of 1902 a stronger voice and bargaining with corporations.