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.
Answer: A. People moved to U.S cities
Explanation: I hope this helps :) You've got this!
The President has the power to sign or veto legislation, command the armed forces, ask for the written opinion of their Cabinet, convene or adjourn Congress, grant reprieves and pardons, and receive ambassadors from other countries.
The Silk Road was an ancient network of trade routes for centuries
