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: Tom had a big date. Sentence 2: He was so nervous he broke out. Sentence 3: He had a big embarrassing pimple on his nose. Sentence 4: Tom tried to pop it and made a huge mess. Sentence 5: He went on the date looking like Rudolph. Choices: a. Timmy's Fish Died. b. The Pimple.
b