Question

the best example of cause and effect after the congress of vienna is
napoleon was defeated,
so france started a
revolution.

the french empire was
demolished, so liberal
ideology grew.

spain became a
monarchy, so the
french empire was
weakened.

austria won territory in
italy, so italy adopted
austrian customs.

Explanation:

• Analyze each option:
• First option: Napoleon's defeat was before the Congress of Vienna, and the French Revolution was before Napoleon's rise, so the cause - effect is incorrect.
• Second option: After the Congress of Vienna, the French Empire was demolished (as part of the post - Napoleonic order). The restoration of the old order (like the Bourbon monarchy in France) led to the growth of liberal ideology as people sought political and social change against the conservative order established by the Congress of Vienna. This has a valid cause - effect relationship.
• Third option: Spain's monarchy and the weakening of the French Empire do not have a direct cause - effect related to the Congress of Vienna's outcomes in a logical way.
• Fourth option: Austria winning territory in Italy did not lead to Italy adopting Austrian customs. In fact, Italian nationalism grew against Austrian rule.

Answer:

the French empire was demolished, so liberal ideology grew.