Answer:
Karl is the kind of hero every middle school needs. He is really nice to the new students at school by making them feel welcome on their first day. Whenever he notices new students at lunch, he sits with them so they won't feel left out. He also makes it a point to introduce them to his friends
Step-by-step explanation:
An anecdote is a short narrative that talks about a real person or event.
Based on the two options given, option a is an anecdote because it gives a brief narrative about Karl and how helps new students feel welcome on their first day of school.