The Twenties Ushered in New Ways of Doing Business,as Companies

The Twenties ushered in new ways of doing business,as companies began to

A) run out of new customers.
B) produce goods to last only a few years, in order to get "repeat" customers.
C) manufacture items that were connected with some other product, to encourage repeat sales - as with the phonograph and records for playing on it.
D) compete with each other in earnest for customers.
E) stimulate demand by allowing consumers to purchase goods on the installment plan.