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: Tom's garage band started getting popular. Sentence 2: They got a new record deal recently. Sentence 3: Their album exploded in popularity. Sentence 4: It went platinum and made Tom rich. Sentence 5: He went on to have a solid solo career. Choices: a. Mark needs a notebook. b. Going Platinum.

b