Which question might a historian ask to investigate what happened

is B) Where did the sinking take place?

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful. 

sitting in that one chair where he could get shot at was his worst decision.