Imperial rivalries and military buildups in 20th-century Europe created a situation in which:
A. small countries tried to become part of large empires for their own
protection
B. European countries were unwilling to form military alliances with
their neighbors.
C. disagreements among European states could easily erupt into
armed conflicts.
D. republican governments in Europe were overthrown by military
dictators.

what are the options ?

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.

because it took place after the war of 1812 had come to an end.

i think the answer is d. good luck.