Option c would be the most befitting one.
Answer:
Pinochet assumed power in Chile following a United States-backed coup d'état on 11 September 1973 that overthrew the democratically elected socialist Unidad Popular government of President Salvador Allende and ended civilian rule.
Explanation:
The dictatorship was established after the democratically-elected socialist government of Salvador Allende was overthrown in a coup d'état on 11 September 1973. During this time, the country was ruled by a military junta headed by General Augusto Pinochet.
It all depends on how long it has been moving without that information it cannot be answered
