The League of Nations was a ___

A. Group of countries that developed modern military methods
B. Peacekeeping organizations formed after World War l
C. Group of baseball teams that toured the world as goodwill ambassadors
D. Undersea exploration organization with twenty thousand members

B. Peacekeeping organisation formed after World War 1

Fun Fact: It was US President Woodrow Wilson that suggested its creation, even though the USA never joined, as Congress didn't allow it due to the American policy of isolationism.

B-Peacekeeping organizations formed after WWI

Explanation:

I just did it

you didn't give any answers to choose from so i can't with this but, i do know something that the mexican government would be worried about and that is the wall that donald trump is currently trying to get up.

independent innovation during the abbasid caliphate