Which best summarizes Ida Tarbell's assessment of standard oil

Considered the pioneer of investigative journalism, Ida Tarbell exposed the injustice John D. Rockefeller, Sr. did to oil producers who would not submit to his tactics. They were either bought or eliminated. She calls the Standard Oil "never played fair" and "that ruined their greatness for me." In simple terms, Standard Oil is never great because it abuses its power and took advantage of the weakness of its competitors.

The company was ruthless in its drive to eliminate competition.