One result of the Napoleonic Wars was that a wave of nationalism swept over Europe and is denoted as option A.
This is referred to as the war which happened between the French and its allies against a coalition of European states. This war was fought under the then leader who was referred to as Napoleon Bonaparte which is where the name was coined from.
This war resulted in nationalism being common in most parts of Europe. Nationalism on the other hand is referred ti as a felling of togetherness of a group of people in terms of ethnic, political parameters and this happened during this war.
This was because of the support in which the French allies rendered to it which made them united on all fronts and is therefore the reason why option A was chosen as the most appropriate choice.
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