during world war ii, american factories

a. closed down because their workers had enlisted as soldiers.
b. controlled the atlantic so they could supply war materials to the allies.
c. supported the war effort by producing planes, ships, and armaments.
d. produced materials only for people on the home front.

The correct answer is C. Supported the war effort by producing planes, ships, and armaments.

Explanation:

During World War II, factories were used as a medium to produce military items. These items were: tanks, airplanes, ships, and some ammunition.  

Through the use of these factories, Allies could have access to industrial resources as well as the possibility to make economic and political alliances. In this way, the Allies obtained the necessary military production to have success during the war.

true

coz they had the rank system in society according to the economic power of the people

the correct answer is:   the domino theory states that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.