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: Kate was cleaning her closet. Sentence 2: She found her old art school portfolio. Sentence 3: She thought of the fun times at school as she browsed the portfolio. Sentence 4: She smiled as she remembered all her old friends. Sentence 5: Kate enjoyed her walk down memory lane. Choices: a. Tom Cruise Hair. b. Portfolio.

b