Which of the Following Statements Is True When Associated with Qing

 Which of the following statements is true when associated with Qing expansion?

A) The Qing dynasty used both force and diplomacy to extend their power.
B) The expanding Russian Empire was a concern for the Qing.
C) The Qing had problems with controlling Mongolian nomads.
D) The Qing asserted control over Turkish-speaking Muslim people.
E) All of the answers are correct.