What technological innovation was the key factor driving the booming economy of the first part of the 1920s? A: The invention of the vacuum cleaner B: the new automobile industry C: The printing press D: weapons manufacturing

Thanks for the help!

Question

What technological innovation was the key factor driving the booming economy of the first part of the 1920s? A: The invention of the vacuum cleaner B: the new automobile industry C: The printing press D: weapons manufacturing

Thanks for the help!

anonymous · Answer

what do you think it might be?

anonymous · Answer

I'm thinking the automobile industry, what do you think?

anonymous · Answer

absolutely! the printing press was invented in the 1500s ( i think, or earlier) and it was not the vacuum cleaner :)

anonymous · Answer

Thanks! I know that weapons manufacturing took place DURING the war, so it couldn't be that one. Thank you for your help!

anonymous · Answer

your welcome! you got the answer without me ;)