Answer:
Discuss the value of both primary source and secondary source documents about World War I.
Explanation:
The ultimate question is the question to the universe and how it all started and such
Solve for one of the variables first ,, then whatever answer you receive from x or y , you then begin to plug it in to get other variable.
The answer is B. Most slaves were captured from other countries.
None of those it was Constantinople, Bursa, Edirne, and sögüt