Answer:
Philip was the self-proclaimed protector of the Roman Catholic Church.
Explanation:
He sought to limit the spread of Protestantism, and he ultimately completed the work of unification begun by Ferdinand and Isabella (the “Catholic Monarchs”) in the Iberian Peninsula. Read more about the house of Habsburg and the Habsburg dynasty.
I believe the answer is C, immunity because (immunity) means protection or exemption from somethings, especially an obligation or penalty. So the key word in the question is protection. I hope this helps and just stating I am NOT 100% sure.