Why was china divided into multiple spheres of influence during the mid-19th century?

Which of the following statements is true about the treaty of versailles ?

Which statement best describes standard oil in the late 1800s? standard oil controlled only a small number of the nation’s oil refineries. standard oil was a single business that operated in a small region. standard oil controlled only the means and methods of oil production. standard oil owned ninety percent of all oil refineries in the united states.

Why did the national government under the articles of confederation face bankruptcy?