What happened in both China and Vietnam when the government liberalized the economy by adopting free-market policies? Nothing happened; the economy remained unchanged.

Democracy took hold and people could vote in free elections.

The economy improved, as did the standard of living.

The economy grew worse, with inflation and unemployment.

The quote below is an excerpt from the charter of the united nations: "the purposes of the united nations are: to maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace, and for the suppression of acts of aggression or other breaches of the peace, and to bring about by peaceful means, and in conformity with the principles of justice and international law, adjustment or settlement of international disputes or situations which might lead to a breach of the peace . " source:this section implies that the united nations is prepared to do what to keep world peace?