He should consult an archaeologist. They study ancient studies looking for remains of buildings, objects, people, etc. They learn a lot about our past and what our ancestors were like through archaeology.
Answer:
B) Millions of Americans joined the U.S. military
Explanation:
One of the reasons why the unemployment rate dramatically decreased during these years was because millions of Americans joined the U.S. military. This is because during these years, World War II was taking place. Although the United States had remained neutral during the first few years of the war, it decided to get involved after the Japanese attack on Pearl Harbor.
Abraham Lincoln I really love him as a president
