The battle of Tours united Christians against Islamic expansion and this among the following events allowed Christianity to act as a unifying force in Medieval Europe. The correct option among all the options given in the question is the last option or option "d".
Rapidly increasing population
During this time, Napoleon negotiated the Concordat of 1801, developed the Napoleonic Code, a civil code. He also made changes to the educational system in France. He also began the Napoleonic Wars, a series of wars that persisted while he was the Emperor of France (about 1801–15).
<h3>What actions did Napoleon take to gain power?</h3>
Napoleon insisted that laws be codified, and one of his greatest triumphs was the Napoleonic Code, which was adopted not just in France but also in the countries that the French army had conquered in Europe. That new legislation forced upon France a unified system of justice.
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The answer is C hope this helps