Problem solving in social studies PLS help lol

What originally inspired countries to band together in intergovernmental organizations (igos) ? (apex) a. climate change b. a period of peace c.population decline d. global conflicts

15 points and brainliest if right which of the following was not a european achievement during the middle ages? gothic style architecture the canterbury tales by geoffrey chaucer troubadours grand canal

Lincoln fought to prevent secession from the united states of america. true or false?