You will be given a definition of a task first, then some input of the task.
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'.

Sentence 1: Kyle was going to take his school pictures in the morning. Sentence 2: He was walking to school and tripped. Sentence 3: Kyle fell and skinned his chin on the sidewalk. Sentence 4: He tried cleaning his chin but it was obvious. Sentence 5: Kyle's picture showed the scratches on his chin. Choices: a. School Pictures. b. Math Tutor.
Output:
a