I know for sure that it is the first and second one but i think the last answer will be your number 3.
Answer:
Military conquests by the Arab Empire ...
Explanation:
I think that's the best answer.
Which of what? I need to know that before I can answer
The right answer for the question that is being asked and shown above is that: "B. Eleanor Roosevelt." After renowned black singer Marion Anderson was denied the use of a concert hall in segregated Washington, D.C., Eleanor Roosevelt arranged for her to sing on the steps <span>of the Lincoln Memorial</span>