Answer:
C. Napoleon’s ambition eventually proved too much; the disastrous invasion of Russia cemented his downfall.
Step-by-step explanation:
Napoleon Bonaparte is known to be one of the greatest commanders. His ambition led to the downfall. As he began campaigns to conquer territories, his troops began to see the hardship and struggle in gaining victory. As a military leader, he won many successful campaigns against Austria and Italy. When Napoleon attempted to conquer Russia, he faces a defeat as troops died during winter and lost nearly 590,000 soldiers. The reputation of Napoleon suffered severely, and French power weakened in Europe.