Answer:
They served as palaces for kings.
Explanation:
The ancient Egyptians built pyramids as tomb for their pharaohs and their queens.
"<span>D. All of the above" is correct. </span>The term "Iron Curtain" was coined by Winston Churchill during a speech following the end of World War II. The curtain of which he spoke was a division between the communist east and the democratic west.
You should look up Progressivism. Progressivists dealt with a lot of reforms in the early 1900s.
Alternatively, try looking up “US health bills since 1900.” If you need a starting point, look up the Pure Food and Drug Act/Meat Inspection Act (both in 1906) and Upton Sinclair’s “The Jungle,” which had a particularly large impact on meat inspection.