It would be "D. Presidential" republic that is the most <span>common form of government system in Europe, since Europe has shifted largely towards democratic principals. </span>
Although no photograph is given in the question, but i can understand about the photograph you are talking about. Based on my assumption, i am answering this question and hope that it helps. It shows that women were needed for the war effort in World war II. The correct option among all the options that are given in the question is option "C".
As far as I am concerned Gao was not one of the Songhay Empire's major ones but I bet two answers should be acceptable in this question. I also think that you can include the third option from the scale represented above because <span>Algiers were quite far away on north so they couldn't be the part of the Songhay. </span>
