Answer: B. By giving a specific example of a tragedy caused by indifference
Explanation:
Logos is referred to as an appeal to logic and a way by which the audience can be persuaded with reason, through the use of facts and figures when crafting a persuasive writing.
Wiesel is establishing logos in this passage by giving a specific example of a tragedy caused by indifference. In this case, by giving a example of indifference, Wiesel is giving further information to persuade the audience.
Serena's perception of her friends' vacations affect her view of her own by, her seeing that they had fun and she didnt really have much fun on her vacation