Answer:
B
Explanation:
All southeast Asian countries turning communist was a big fear to the USA and they called this the domino effect because they feared that if one southeast Asian country turned communist, the rest would also
Manifest Destiny was a distinctly racist concept in the first place. The idea was that white man was destined to conquer the west and this meant subduing anyone else who happened to live there. White man alone was entitled to this "destiny". It used the ideas of Jacksonian democracy of a "white man's democracy" to develop these beliefs.
I think it would be the Gadsden Purchaze
The colonists were angry because they did not have representation in the British Parliament. So the correct answer would be "C".