Respuesta :

The region of the world that had the most decrease from this time frame was the East.

What caused the East to have a decreased population from 1850 and 1900?

The rise in agriculture was a reason why a lot of people moved from the east to Europe.

This led to a population explosion in Europe in the time. They helped to take care of the agricultural needs of the continent.

Read more on population here: https://brainly.com/question/25896797

I know I am a year late but for the future people the answer is:

B: The east.

A: The west.

3 percent.

Got it right on edge, have a good day :).

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