The following chart shows the population of Europe from 1750 to 2000. Use the chart to answer the following question:
Look at the data in the chart. What developments in mid-17th century Europe help explain this data? (5 points)
a. Population increased in the mid-17th century because all European nations united under a common empire.
b. Population decreased in the mid-17th century because most political systems were unstable.
c. Population increased in the mid-17th century because there was more religious tolerance after the Thirty Years' War.
d. Population stayed the same in the mid-17th century because immigration and emigration rates were equal.
![The following chart shows the population of Europe from 1750 to 2000 Use the chart to answer the following questionLook at the data in the chart What developmen class=](https://us-static.z-dn.net/files/d5f/d5d5ac3463df8fec21d1c518d0255226.jpg)