Given the task definition and input, reply with output. 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: I could no longer feel hunger. Sentence 2: The years of starvation had killed the feeling. Sentence 3: I did, however, notice when my stomach growled. Sentence 4: Today it growled loudly in the office. Sentence 5: I was so humiliated that I hid in my cubicle. Choices: a. Cool Summer. b. Growling.
b