Which of the following statements about john d. rockefeller is most accurate?
a. he drilled the first oil well near titusville, pennsylvania.
b. he invented the concept of vertical integration.
c. he founded the standard oil company when he was 24 years old.
d. he considered competition to be the central ideal of capitalism.

What was the main point of helen hunt jackson's book, century of dishonor? a. it showed how unfairly american settlers were treated by the us government. b. it proved that american government was not responsive to the will of the people. c. it made the point that free land was no longer available to new settlers out west. d. it outlined the poor treatment of the native americans by the government.