Some effects are:
<span>- A new republic in France </span>
<span>- the fall of Metternich </span>
<span>- promises of reform in Austria, Italy, and Prussia </span>
<span>- A new empire established in France </span>
<span>- Success in liberalism, nationalism, and socialism </span>
I'm pretty sure the answer for this is:
C. A philosophy of government that advocates for a strong central government
Hope this helps! :D
The answer is (B) hydroelectricity