Answer:
Option: d. They expelled Muslims from Spain
Step-by-step explanation:
The New powers in Spain began with Queen Isabella I of Castile and King Ferdinand II of Aragon in 1469. Both united their states and formed the Spanish Kingdom. They were able to come into power in Spain with the help of feudal lords. After coming to power, they issued Alhambra Decree as an official order that forced Jews to leave Spain or convert into Catholic.