A possible reason was the attacks on them by crusaders and mongols around the 11th and 12th centuries. Another reason could have been the Arab rulers removing taxes from non Muslims and doing other things that hurt there income.
I think its Western Europe?
The correct answer is B. Each had developed written languages that have been deciphered by modern linguist.
This is the statement that is false, because the Harappan writings are still not deciphered by the modern linguist. There's even a theory that it might not even be an actual writing system.
The answer is D. Inedutured servitude allowed poor germans to ave to america
