_involves countries negotiating with each other to settle their their differences

Diplomacy involves countries negotiating with each other to settle their their differences. It is considered the work of conducting negotiations between representatives of different states so as to maintain favourable international relationships. For that reason, diplomats encourage cooperation and peaceful relations by international agreements and compromises between nations.

on this day in 1833, president andrew jackson announces that the government will no longer use the second bank of the united states, the country's national bank. a national bank had first been created by george washington and alexander hamilton in 1791 to serve as a central repository for federal fund

i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

hope this ! : )