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 was at the mall. Sentence 2: He thought he saw his wife. Sentence 3: He went up to pinch her butt. Sentence 4: It turned out to be another woman. Sentence 5: She was flattered. Choices: a. Mistaken Identity. b. The Football Star.

a