The answer I would have chosen would have been that Paris was in chaos. Someone had to do something. The second and 4th answers are nonsense. He was a skillful politician. He took advantage of circumstances. I think however you are intended to pick A.
First One (A) <<<<==== answer.
During 1968, the turmoil created chaos, political, and civil rights problems caused by race segregation protests. A media report gave information on a speech given by the Speaker of the Democratic Party on behalf of the running President. It left a negative impact when he opted of violence using police force strategies to end the protests while people riot for their rights. It turned the tide in favor of the Republicans President Nixon and George Wallace.
I think it is "isolating themselves from other Asian Nations"?
B. and E. marked the downfall of the Inca empire, for obvious reasons. Disease and civil war would obviously kill the empire, and taking an important leader would also mark great chaos within the empire. A. and C. are not to be ignored however, considering that maintaining peaceful relationships with the Spaniards only brought death and chaos to the Aztecs, all from the Spaniards.