I'm not 100% sure on what the answer is but I think its either B or C.
Answer: help of IMF (International Monetary Fund) to deal with this foreign currency crisis. The citizens of Korea as well actively contributed towards foreign loan repayment through the “Gold Collection Movement”.
Explanation:
The cotton gin made it easy for slaves to separate seeds out of the cotton. However, it it increased slave usage all over. It actually increased the use of slavery. The cotton gin just made one part of a slaves job quicker and easier.
The correct answer is <span>Invasion of Cambodia
Although the war had been localized to Vietnam, in 1970 the Southern Vietnamese army with the help of the United States troops had invaded into Cambodia who was also having the same problems as the Vietnamese, the communists were fighting those against communism, so Vietnamese people decided to join the fight, which stirred a new round of protests.</span>