C

Test question analysis: This question mainly tests students’ analysis and understanding abilities. The core of the question refers to the tsar's autocratic power, and item D is inconsistent with the material; items A and B are specific manifestations of item C; item C's strengthening of centralized power is conducive to strengthening autocracy, which is consistent with the meaning of the question. So choose C.

Comments: This question examines the political reforms of Peter the Great. Peter I's reforms affected various aspects such as military, economy, culture and education, and living customs, which initially changed Russia's backwardness, enabled Russia to keep up with the pace of modernization in Western Europe, and laid the foundation for Russia's aggression and expansion; the main limitations of the reform Sex is the failure to abolish the backward serfdom system.