Answer: 3rd one
Explanation: They wanted to eliminate the competition and in turn have a stronger bond.
Back then, christian monks and missionaries travel throughout foreign countries and spread the words about their gospel and saving people. In time, it influences finally rooted within the people and a lot of people in Byzantine empire became christians
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Explanation:
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Near East and Middle East (whole Asia from Mediterranean sea to contemporary Pakistan, Kazakchstan, including these countries) Balkans, North Africa and its eastern coast, Spain, Portugal, Sicilia, Indonesia.