The correct answer is C. terrorism and natural disasters
The problem with extremists and extreme weather conditions such as monsoons, tsunamis, floods, and similar, caused tourism to be on the decline in SEA countries.
Idk if this is the event its asking for but: The “Red Summer” of 1919 marked the culmination of steadily growing tensions surrounding the great migration of African Americans from the rural South to the cities of the North that took place during World War I.
If no canidate receives a majority, the House of Representatives elects the president