Final answer:
Charles II's belief in royal prerogative and divine right caused political instability by alienating the English people and leading to rebellions and a weak foreign policy.
Step-by-step explanation:
Charles II's belief in royal prerogative and divine right caused political instability in England. His refusal to work with Parliaments and his disregard for the traditional religion and civil liberties of the English people alienated many. This led to rebellions, persecution of nonconformists, and a weak foreign policy. Charles's reign created a country that was divided at home and ineffective on the international stage.