I believe the answer is d.
Answer:
Expansion of Christianity. The Great Schism split the main faction of Christianity into two divisions, Roman Catholic and Eastern Orthodox. ... The resulting split divided the European Christian church into two major branches: the Western Roman Catholic Church and the Eastern Orthodox Church.
Explanation:
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Answer:
winters were especially harsh which made it harder to sustain successful crops through the winter. also the terrain was less fertile and incredibly more hilly with less open space. so tree removal would be necessary for a field to grow on or to build a house on. the hills would make travel and resource distribution much more difficult and more time consuming.