Answer: The war officially ended with the February 2, 1848, signing in Mexico of the Treaty of Guadalupe Hidalgo. Mexico gave up all claims to Texas and recognized the Rio Grande as America's southern boundary.
Explanation: Hope this helped!! :D
I'm thinking B. But could be wrong:/
The My Lai massacre changed public perception of Vietnam drastically. Many people already thought it was an unjust war, and this added to that anti-war sentiment. When many veterans came home they were treated like trash, because everyone back home saw the terrible war crimes committed by the U.S. Many people called for an end to Vietnam after it.
I fail to understand the question. The police station?