Answer: logos
Explanation:
Ethos refers to an appeal to ethics. This is when an individual is convinced based on the credibility of the person persuading him or her.
Pathos refers to the appeal to emotion, which is when an audience is convinced by creating an emotional response.
Logos is an appeal to logic. This is gwn an audience is persuaded by giving them reasons. In this case, "Live longer, buckle up" is a logos. If one doesn't use the seat belt and is involved in an accident, the person may die but using a seatbelt can help prevent death.