Answer:
D). A photograph of a political candidate.
Step-by-step explanation:
A persuasive appeal could be described as an appeal that is chiefly inclined towards persuading or convincing the audience to accept and believe in the ideas proposed. Such appeal could be done through different 'modes of persuasion' as proposed by Aristotle like ethos(appeal to ethics), logos(appeal to logic), 'pathos'(appeal to emotion).
As per the question, the option that would exemplify a persuasive appeal would be option D as 'photograph of a political candidate' exemplify 'ethos' that aids to invoke authority and establish the speaker's character or credibility that could substantiate the speaker/author's point and appeal to the ethics of the audience. Thus, option D is the correct answer.