I believe the answer is C
Well, at first, it was an informal, familial system inn the Early Republic, However later in the Republic it became a tuition-based system. It was greatly based of the Greek system. Many tutors in the Roman system were Greek Slaves or Freedmen.
So that the shipping of goods would be expedited.
The ottoman empire entered the war trying to gain land but with British solders in Mesopotamia and Palestine and rebellious Arabs they lost most of their land.
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I don't know if this is completely right, but I might be close. You could say that most American Indian students wouldn't get the same equal treatment as white students, and might be treated differently from the other students. I don't know what you mean by "one of these schools" but I'm guessing it was back then during a time of minority rights movements. I would just stress on the fact that they were denied a lot more rights and not treated equally.