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: Susie was getting tired. Sentence 2: But she had to finish her project. Sentence 3: Her eyes started to doze off. Sentence 4: Susie could not help it. Sentence 5: She ended up falling asleep without finishing the project. Choices: a. Heart. b. Getting ready for bed.

b