What could have caused u. s. imperialism?

a) the success of the russian-japan war and the colonies the united states saved.

b) the success of the spanish american war and the colonlies received from that victory.

c) the dangerous armament race in europe.

d) the u. s acquistion of alaska and hawaii.

answer; i believe that the correct answer is (agriculture);

the growing interconnectedness of the world through communication, trade, and the exchange of ideas is an important theme in the history of the 20th and 21st centuries.

explanation:

because people what other people gold

explanation:

to keep us neatruel and not get involved in any wars

he assumed control of treaty negotiations with a hostile power