The answer would be D. The united states lowered tariffs and demanded more European goods. Hope this helps :)
I think it is war time executives.
The answer is D the humiliation is what lead to the rise of the nazi party and Japan let that power get to them and they did the one thing that the League of Nations to them not to do which was start invading things
they worshipped secetly or in white churches.
Naval warfare.
Land warfare.
Artillery.
Chemical warfare.
Mobile warfare.
Aerial warfare