The correct answer to this open question is the following.
We are talking about the Gulf of Tonkin Resolution. This resolution changed the rules of war as outlined in the U.S. constitution. With this resolution, the US Congress granted the President of the United States -in this case, Lyndon B. Jhonson- unlimited powers to stop communism in Vietnam. After the aggression of two US navy vessels stationed in the Gulf of Tonkin, Congress passed the resolution on August 7, 1964. From this point on, the US Army committed to total support of South Vietnam in the Vietnam War.
Your answer for this is B
I think the theory was global warming because the weather suddenly changed
They were all human and Aryans
The correct option is C
The nineteenth century represents a turning point for the history of China and Japan with the arrival of Western powers in Pacific waters. Although the circumstances of both countries were very different, figuratively we could say that in the second half of the nineteenth century China lost the train of modernity due to its slow economic growth while Japan climbed quickly to the development plane.
Japan and contact with the West; At first they had had contact with some merchants from Holland, Russia and Great Britain. It was not until 1853-1854 with the Kangawa Treaty, and the US imposition. Through the military Matther Perry, that Japan opened its ports with commercial sights. All this caused a crisis in their traditional feudal structures, and a population that felt humiliated.