Definition: In this task, you're given five sentences, numbered 1 through 5, and two options a and b for possible titles for the story. Your job is to choose the title that better fits the story. Indicate your choice by 'a' or 'b'.
Input: Sentence 1: Yesterday was the first day of school. Sentence 2: I was really scared because I didn't know anyone. Sentence 3: During lunch I sat next to someone names Phillip. Sentence 4: Me and Philip became really good friends. Sentence 5: Now I'm not scared to go to school anymore. Choices: a. Walking the dog. b. First day of school.

b