Final answer:
Boris Yeltsin did not seek to overthrow the existing world system or exhibit hostility toward Western and former-Soviet nations; instead, he focused on democratizing and transitioning Russia to a free-market economy. The correct answer is option 1.
Step-by-step explanation:
Boris Yeltsin did not attempt to overthrow the existing world system or brandish hostility toward Western and former-Soviet nations during his time as the leader of Russia. This proposed change stands in contrast to other actions he undertook, such as the dissolution of the Soviet Union in favor of independent states, expanding democratic reforms initiated by Mikhail Gorbachev, and an aggressive transition from a planned economy to a free-market system. Yeltsin's efforts were part of restructuring and modernizing former Soviet society, though they also led to criticism and discontent due to economic hardships and corruption that followed.