The correct answer is A. Ethos, an appeal based on the credibility of the speaker.
Step-by-step explanation
Ethos is a word of Greek origin that means "character" and is used to refer to authority and credibility. Therefore, when a persuasive speech uses ethos, it is because it seeks to persuade the receiver through the trust that it transmits according to your position or status. Therefore, Franklin Delano Roosevelt's Roosevelt Executive Order No. 9066 is a speech that uses the ethos mode of persuasion because it relies on Roosevelt's position to convince people. So the correct answer is A. Ethos, an appeal based on the credibility of the speaker.