In response to the need to develop greater and greater mass markets for
their products, American business in the 1920s relied especially on the new
techniques of
O
developing a large range of product variation
O
price competition
O
direct selling through catalogs and door-to-door solicitation
O
consumer advertising.

1920's

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explanation:

the answer is b your welcome : )

answer: held for the purpose of bringing nazi war criminals to justice, the nuremberg trials were a series of 13 trials carried out in nuremberg, germany, between 1945 and 1949

explanation:

during both period congress passed law restricting the civil liberties of american citizen that meet with the overall public support is the one statement that explain the rate scare of the 1920 and 1950 is very similar