The correct answer is A) What are the personality traits of each of these individuals?
The question that is most useful for Karen to ask is "What are the personality traits of each of these individuals?"
Karen is planning for an essay in which she will explain why the adults in the annex seem to prefer Margot over Anne.
What Karen has to do first is found the personality traits of Margot ad Anne.
What characteristics Margot posses that made her be preferred by people. Is she more amicable? Is she kind? Is she compassionate? Is she always showing a smile and always has good humor? Then, the case of Anne. Is she showing the opposite traits?