What is a modern day connection to the Fall of Constantinople? It can be any event after 1453, the time the empire fell. Also please explain how the modern example is similar to the fall of Constantinople

If the imperial dynasty had continued to rule china, it is most likely that a) the economy would have improved rather than weakened b) european nations would have gotten more of a foothold in china c) revolutionary groups would not have gained any power in the country d) communism would not have received support among the poor