Which of these is an example of economic transformation that occurred in the early 20th century?

a) the united states negotiate a peace agreement between japan and russia.

b) the united states increased its size drastically by purchasing the territory of alaska from russia.

c) president lyndon b. johnson supported a “flexible defense” strategy in response to perceived communist threats.

d) president taft instituted the practice of “dollar diplomacy” through fin

President Taft instituted the policy of dollar diplomacy

Explanation: The imperial expansion of the United States, esepcially in the CAribbean and Latin American meant the acquisition of new markets

harding's opponent in the 1920 election was ohio governor and newspaperman james m. cox, who had won the democratic nomination in a 44-ballot convention battle. harding rejected the progressive ideology of the wilson administration in favor of the laissez-faire approach of the mckinley administration.