When we say that America was lucky to be at the right place and the right time, which of these are parts of being at the right time between 1900-2020?
A. It was able to join the British Commonwelath of Nations
B. The decline of European colonial empires left an opening for other nations to take the lead
C. The Industrial Revolution accelerated rapidly
D. European countries' economies were destroyed by two World Wars, but the US was able to help them recover
E. Slavery was ended in this period, increasing American stability