Of the following government types, which two are the most opposite?
a.
a dictatorship and a democracy
b.
a monarchy and a dictatorship
c.
a monarchy and an aristocracy
d.
a republic and a democracy

The correct answer A.  "a dictatorship and a democracy".

Explanation:

A dictatorship is a type of government that is authoritarian, centered around a single leader or group of leaders and with limited political pluralism. On the other hand, on a democracy  the citizens have power of decision, the leader is elected through a voting process, and there are two or more political parties to chose from. These two types of government are the ones who have the most opposite characteristics.

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.