Argentina,in the Late 1970s and Early 1980s

Argentina,in the late 1970s and early 1980s,

A) moved steadily toward a multiparty political system.
B) was ruled by military dictators who caused the disappearance of thousands of individuals.
C) experimented briefly with a communist system.
D) was invaded and briefly ruled by a Chilean puppet dictator.
E) became a puppet state of the United States.