Which of These Regimes Is MOST Likely to Use Violence

Which of these regimes is MOST likely to use violence against its citizens?

A) Single-party dictatorships are most likely to violate rights because the dictator can single-handedly order human rights abuses.
B) Multiparty dictatorships are most likely to violate rights because the political opposition is active and the dictator uses repression to suppress them.
C) Multiparty democracies are most likely to violate rights because elected officials are accountable to a public that supports rights.
D) Two-party democracies are most likely to violate rights because elected officials do not need to fully represent constituent interests.