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: Today was John's first day of school. Sentence 2: John was new to this school, and had no friends. Sentence 3: John's teacher introduced him to the class. Sentence 4: John was from Japan, and he met Tim who also was from Japan. Sentence 5: John and Tim became good friends. Choices: a. John Made a friend.. b. Restriction.

a