Answer:
A
Step-by-step explanation:
Process of elimination, for example B are only speaking on 1 form of governmental philosophy, socialism so its not comparing its just speaking about itself. C is not talking about a government, its talking about the person Karl Marx. And D also isn't comparing governments. Is talking about Hitler, and when he rose to prominence. So that leaves us with A who is directly comparing the percentages of dictator/democracy in major countries.