The best reason as to why the caliphs demonstrated religious tolerance to Jews and Christians would be because "D. the caliphs knew freedom of worship led to an overall stronger empire," since allowing people to worship freely meant that they were less likely to rebel against the state.
The answer is D, hope this helps out a lot of people
The Devshirme system was a system where Christian boys were recruited by force to serve the Ottoman government.
Answer: The law allowed no more immigration from European nations.
Explanation: The Immigration and Naturalization Act of 1965 abolished a prior quota system dependent on national origin and built up another movement strategy dependent on rejoining migrant families and pulling in skilled labor to the United States.
Throughout the following four decades, the policies put into impact in 1965 would enormously change the demographic makeup of the American populace, as settlers entering the United States under the new enactment came progressively from nations like Asia, Africa and Latin America, rather than Europe.
George Washington is the first president