Peter the great reduced the power of the boyars by ending all plans for conquest and territorial expansion. introducing the eastern orthodox religion to russia. hiring european military advisers. introducing a merit system of nobility.

The correct answer is "introducing a merit system of nobility".

Peter The Great created the "Table of Ranks", which consisted of a new order of precedence among the Russian Nobility. His purpose was to eventually remove the Boyars from their high positions by establishing a merit system that determined that precedence was defined by merits and service to the Emperor. This system remained active until the fall of the Russian Monarchy in 1917.

the answer is a) to be able to obey them.

i thinl it is the 1st answer