Answer: President Kennedy did not like the spread of communism in Vietnam,
Explanation: When President Kennedy and the whole White House heard bout this news, they took action. They declared war on North Vietnam, by sending troops to Vietnam soil, sending money and weapons to fight Vietnam, Kennedy did not want the world to follow the steps of Communism, so that is why he acted so instantly and furiously against Vietnam!
I think the correct answer from the choices listed above is option D. The old world <span> product that became widely popular in Eurasia only once it was cultivated in the new world would be potatoes. Hope this answers the question. Have a nice day.</span>