<span>cause american established a sphere of influence instead of creating the Open Door policy, american only become part of China's problems. It may have made the Chinese people resent us more. By establishing the Open Door policy, we soothed Chinese concerns AND secured our economical strength in China because we did not have to actively compete with other spheres of influence.</span>
That would be productivity.
It was the year 1798 that Thomas Malthus predicted that the humanity would be met with mass starvation. His prediction was based on an assumption that human population would far exceed the means of producing food and that we just would not be able to produce enough food for everyone. But the technological advancement and the advanced farming techniques allowed us to increase productivity and thus avert this prediction.
Your answer is (4) controlling the supply of oil to raise prices
B.to be sure the vote was record? I don't know for sure tho
