None of the listed responses accurately describe how Napoleon changed the law code in France. Instead, Napoleon implemented the Napoleonic Code, also known as the Civil Code of 1804. This code sought to unify and modernize the French legal system, promoting equality before the law, ensuring protection of property rights, establishing a clear set of civil rights and responsibilities, and regulating various aspects of life, such as family, inheritance, and contracts. It had considerable influence on legal systems in many countries.