40 percent of Italy's people were enslaved.
<span>to encourage settlement west of the Mississippi River
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The city of Jerusalem was significant to Muslims because it was a major town there and had significant religious importance for them based on the events which have happened in Jerusalem (when one reads the Quran).
I think the answers which you've provided weren't really the correct ones for this question.
A, because that is the basis for the concept of risk pooling.