Poland is your best answer.
Poland has 3 different types of color (being <em>Orthodox Christian</em>, <em>Roman Catholic</em>, <em>Lutheran</em>).
Norway only has 1 (<em>Lutheran</em>), France has 1 (<em>Roman Catholic</em>), and Spain has 1 (<em>Roman Catholic</em>), making Poland your answer.
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Answer:
it accelerated the great migration
C. To force negotiations with the Muslims. The pope wanted to reclaim the land from the Muslims.