PLEASE HELP what was china motive in joining world war I alongside the allies?
A. they hoped to drive japan out of mainland china.
B. they hoped to defeat Germany and collect reparations.
C. they hoped to ally with japan and make peace between the two nations.
D. they hoped to ally with the united states and become a world superpower.

China's motive in joining World War I alongside the Allies was that they hoped to drive Japan out of mainland China.

Explanation:

During the second half of the 19th century, China fell into a very bad situation, where it was not able to control and resist foreign invasion and policies, and the people living in misery. This continued during the 20th century, with the only difference being that the initial colonial powers lost ground in China and Japan became the new colonist.

Japan was much more brutal, and unlike the previous colonists that were solely interested in the economic aspect of the colonialism, Japan went genocidal on China. The situation was so terrible that the Chinese decided to ally with their former colonists that were part of the Allies in order to push back the Japanese forces.

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