Question

Which is an example of a one-party system?

a country in which power is held by one party at a time
a party that refuses to consider proposals of the other party
a state in which one party wins two consecutive elections
a dictatorship in which only ruling party is allowed to exist

Answer 1

I think it's the second one..

Answer 2

A dictatorship is a one-party system because only the ruling party is allowed to exist. Sometimes a dictatorship allows other parties to exist, but the other parties are kept small and powerless.

Step-by-step explanation:

The last one