It was transformed through the duration of the early phase of World War 2 when US joined the Allied Forces after the Japanese attack on Pearl Harbor. The US economy become a wartime economy to suffice and supply the need of the Allied Forces in the field and to provide the equipment to combat the opponents. They transformed a lot of factories into weapons factories and constructed a lot of military camps throughout the country.
C, Most of the important food crops in Germany had died
It would be "c. The building of transcontinental railroads" that provided the greatest boom to economic unification in both the U.S. and Canada, since this allowed for goods and services to be transported at unprecedented speeds and at much lower costs.
im sorry but i dont know the answer good luck in finding it out
