It is Thomas Edison I just read this. He invited the lightbulb.
Through speech and then eventually text
tbh i think its D because u can eliminate B an C An A
The League of Nations, abbreviated as LN or LoN was the first worldwide intergovernmental ... The organisation's primary goals, as stated in its Covenant, included ..... After more negotiation and compromise, the delegates finally approved of .... pushed for his country to join the League; joining in 1926, Germany became ...
"c) rise in the demand for consumer goods" is the best option in terms of what affected the American economy immediately after world war 1, since this was a time of great prosperity.