The correct answer is B - logical appeal. It is a strategy used to persuade the reader through the claim, evidence or justification.These three parts must be applied logically in order to achieve a logical appeal. Justification plays a connecting role between the evidence and claim. Of course, there are different methods to apply the logic and these methods could be a cause and effect strategy or comparison between the facts. Logical appeal is used together with other two persuasion techniques - emotional and ethical appeal.