I think ur answer is
D)40,000-80,000
Hope it helps
At firs Johnson sent advisers and gave weapons to the South
Vietnamese so that they fight the North Vietnamese. Later on U.S. bombers bombed parts of North
Vietnam and ground troops were committed to assist the South. More and more troops were being sent until
the U.S. became deeply involved in the conflict. When public support decreased, the U.S. began
its withdrawal from South Vietnam.
If we’re talking about the US I think it was called the good old days because it was an era after WWl where soldiers came back home and the economy started the flourish