Answer: a.sekularisasyon
Explanation:
Secularization is the process by which liberal ideas gain popularity in a society such that traditional and conservative ideals begin to lose influence and relevance.
Medieval Europe was very conservative but with the period of the Enlightenment, people began to be more scientific and liberal until Europe led the world in secularization. Now they actively encourage it and impose sanctions on some nations who go against the process especially in the area of LGBT rights.
