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: Justin was speaking to the crowd. Sentence 2: He held on tightly to the microphone. Sentence 3: He gave his speech and then sat down. Sentence 4: Someone told him the microphone was not turned on. Sentence 5: Justin felt stupid. Choices: a. Parker's New Leaf. b. The Microphone.

b