_is the act of comparing pieces of evidence to see where they agree and/or disagree.

A Sourcing

B Contextualization

C Close Reading

D Corroboration

im pretty sure it has something to do with the end of ww1

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

the policy of appeasement influenced the beginning of ww2 because hitler gave the other countrys chocies but after they choose to try and appease hitler to not invade their country but he still invaded them.

d gerrymandering is the correct answer