In the American Business Community at the End of the Nineteenth

In the American business community at the end of the nineteenth century,

A) most states had made it illegal for one corporation to buy another one.
B) rampant competitiveness and labor shortages helped to keep prices down and wages up.
C) one percent of corporations controlled one-third of all manufacturing.
D) almost all corporations had achieved stability through "pool" arrangements.
E) federal reforms of corporations had ended the most predatory business practices.