Answer:
Correct answer is Religious conflicts were more likely to arise in Ireland than Spain during the 17th century.
Step-by-step explanation:
First option is correct because in Spain Catholicism was dominant, therefore it was practically impossible for the conflict to arise, while in Ireland there were both Catholics and Anglicans, therefore conflict could happen easily.
Second option is not correct because beside Holy Roman Empire all countries were religiously homogenous.
Third option is also not correct as we can see that many different religions were practiced.
Last option is also not correct as Catholicism in southern Europe was still dominant.