During World War I, what did government promotion of daylight saving time,
"meatless Mondays," and the purchase of Liberty Bonds all have in common?
A. Each required Americans to provide the U.S. government with
money and resources to help pay for the war in Europe.
B. Each encouraged Americans to fear and resent Germans,
Austrians, and other immigrants from the Central powers.
C. Each required Americans to make sacrifices in order to bolster the
resources for the U.S. war effort.
D. Each indirectly helped corporations profit from the war in Europe
by increasing productivity and prices.