Answer:
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Explanation:
first question:
The practice most likely to have been supported by conservatives in Europe in the 1800s is:
B. A monarch made key political decisions based on input from advisors.
Conservatives during this period generally favored traditional monarchical and aristocratic rule, and were opposed to the democratic reforms and radical changes advocated by liberals and revolutionaries.
second question:
The factor that played an important role in the unification of both Italy and Germany is:
B. nationalism
Nationalism was a decisive force behind the unification movements in both Italy and Germany, as it inspired people to seek political and cultural unity based on shared national identity and heritage.