<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be "buying on a margin", since stock brokers today and in the past have relied on credit to make offers more lucrative. </span></span>
Answer:
The Russian Revolution ended the main battleground on the eastern front of World War I and temporarily helped liberate the German army
Explanation:
He reasoned that since parallax could not be observed for celestial objects near the sun, then the earth was stationary. This erroneous assumption was because at the time he had no way of knowing that celestial objects were so far away that their parallax angles were too small to detect.