Answer:
<em>Option C. Prince Klemens von Metternich believed that the French held great influence over Europe.</em>
Explanation:
Klemens von Metternich was an Austrian politician and diplomat, who served as the Austrian ambassador to France and later as Austria's foreign minister, during the Napoleonic era. When Metternich was appointed as the Austrian ambassador to Vienna, he got the opportunity to study from close Napoleon, who he defined as "the conqueror of the world", stating how important not only was the political leader but also the power that held France over Europe. Metternich was, in fact, a witness of the power France had, when the country went to war against Austria, and he was detained and sent back to his homeland, where he later became the foreign minister, and worked hard to isolate and dethrone Napoleon.
