14. Why did radios become a big business by 19292 € O A The economy was recovering, and people had more money to spend on luxuries such as radios.
OB. The development of synthetic fibers like Bakelite plastic facilitated widespread radio production.
O C. As more people purchased Ford's automobiles, they started needing entertainment for their road trips.
OD. Radios that had been used for wireless communication during the war were sold to consumers and gained popularity.

How did the theory of social darwinism impact immigrants? it inspired in the immigrants pride that they were able to survive the harsh conditions of their home countries to come to the united states. it demonstrated that immigrants were the most suitable candidates for factory work because they were the most likely to immigrate to rural areas. it encouraged assimilation of immigrants into the american culture through education that involved courses in english and american food and clothing. it provided new american immigrants with a clearly defined social support system to ensure that basic nutritional, educational, employment, and health care needs were met.