Which of the following most limited the ability of the league of nations to reverse japan's invasion and occupation of manchuria?
a. the united states was not a member of the league of nations.
b. japan left the league following japan's invasion and occupation of manchuria.
c. china did not desire the league to become involved in the war with japan
d. league members lacked the economic and naval power to halt japanese aggression in manchuria
e. war and other provisions were outlawed in the kellogg-briand pact