Answer:
A = They Wanted To Make Their Country Catholic.
Explanation:
Ferdinand and Isabella hoped a new Inquisition would unite the Spanish people under one religion and make them loyal subjects. Many heretics were burned at the stake. At the same time, Ferdinand and Isabella fought to drive the Moors from Spain. In 1492 they captured the kingdom of Granada.
(From Facts For Now)
They were confident and believed the war would end quickly.
Political Persecutions forced Seyyid Said to move his capital to Zanzibar from Muscat. Oman had become insecure for him to live and carry on with administration. - The religious persecutions in Saudi Arabia also forced him to leave Oman and settle at the coast of East Africa which was free from such acts.