Answer: B. Because it uses feelings of patriotism to appeal to our emotions
Explanation: This picture is an example of an appeal to pathos because it uses the sense of patriotism to convince an audience to the correctness of its claim. The feeling of patriotism causes emotions at the auditorium to achieve the effect of approval by listeners.
The picture does not mention any facts or reason to appeal to listeners, in that case it would be a logos.
If the credibility, or authority, were mentioned in the appeal, then that would be ethos.