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: My daughter was in high school during 9/11. Sentence 2: She said the school got quiet. Sentence 3: The teachers would not say what happened for an hour. Sentence 4: They finally told the students, and people started crying. Sentence 5: They were released by 11 AM. Choices: a. You are not Santa. b. 911.

b