How did the fall of the soviet union affect thee world in the long run

a. it allowed the united states to exercise control over the entire world

b. it led to a worldwide ban on the production of nuclear weapons in the years to come

c. it allowed the independent soviet nations and satellite states to choose democracy over communism

d. it allowed the independent soviet nations to start a new war against european countries

The collapse of Soviet Union had last longing effects on the global trade and even on social-political environment and it allowed the independent Soviet nations and satellite states to choose democracy over communism.

Option-C

Explanation:

The fall of Soviet Union started with the fall of Berlin Wall when communist controlled Eastern European countries like Romania, Bulgaria and Czechoslovakia staged protests against Soviet government and this led to the first collapse of Communism.

Soon, other countries like Ukraine, Russian Federation and Republic of Belarus followed the protests that led to dismantle of Soviet Union. Communist controlled European officials have been replaced by democratically elected governments.  

With the dismantling of Soviet Union countries, United States capitalized the opportunity to exercise control by means of military interventions in foreign countries and eventually United States became a global power among all counties in the world.  

The collapse of Soviet Union not only led the US to gain power, but also created far reaching effects on other countries, especially nearest countries like Kazakhstan, Azerbaijan where Oil and Natural reserves created not only opportunities in trade but also led to corruption. European countries had exercised major influence into the areas where USSR controlled initially. China used the situations to the advantage and soon attained the status of world super power.

missouri compromise of 1820 which prohibited slavery

i believe it would influence their own way of understanding things. it shall be a foundation where they can draw or start an argument.   historians are also  scientists that  have their tools of analysis and expertise to unlock a variety of difficulties such as relationships of man, origin, politics, economy, and culture. based on facts and understanding on these areas, they may shade light to extract ideas and develop options to validate a hypothesis or debunk it.