Answer:
<em>A</em>
Explanation:
In World War II, rubber had many uses, including building vehicles and planes for the war effort, and was scarce since it is mainly found in South America, central Africa, and Southeast Asia.
Nope ! can you explain what it is ?
Braceros worked on farms and on railroads, making it possible for the U.S. economy to meet the challenges imposed by the war effort. existed and viewed the Bracero program as a way for the U.S. to obtain cheap labor.
An economy like the one America has... sorry im not sure what its called.. but basically, if there are less supplies, and more people wants it.. thats how supply and demand starts.
I think it is market economy