I’m confused on this can someone help me out?

When kaitlin served as an intern to the united nations delegation from the united states, she was demonstrating which of the following?

The first map shows colonial powers and their holdings (1945). the second map shows human development worldwide. compare the two maps. what do the maps indicate about regions that gained independence in the second half of the twentieth century? they differ in their development patterns. they are as developed as their colonial powers. they are more developed than their colonial powers. they remain less developed than their colonial powers.

When and why did the united states enter world war 2