Answer:
B). Ethos
Step-by-step explanation:
Ethos is defined as the persuasive device in which the author invokes their authority, competence, or expertise in an attempt to establish the credibility of his/her argument and convince the readers to believe in it. In the given example, 'ethos' is the rhetorical device that the author has employed to establish the validity of his argument by invoking his authority('I do not think...win in this year'). Thus, option B is the correct answer.