Very hard go back and look to see
Answer:
A. The method by which the US senators are elected was changed.
Explanation:
The Second Indochina War (aka the Vietnam War) began as a conflict between the South Vietnamese army and government, and the communist Viet Cong. The United States publicly supported the South Vietnamese government but didn't want to join the war unless absolutely necessary.
During silver war there was a lot going on so if it was a lot for people to translate it was a lot of gun violence and