Human beings are obliged to obey secular rulers insofar as the order of justice requires. And so if secular rulers have usurped power and have no just authority, or if secular rulers command unjust things, subjects are not obliged to obey them, except, perhaps incidentally in order to avoid danger or scandal.

When are subjects not obliged to obey secular rulers, according to the text?
a) When secular rulers command just actions
b) When secular rulers are just and fair
c) When secular rulers have usurped power or command unjust things
d) When subjects disagree with the policies of secular rulers