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: According to his mum, lewis spent too much time looking in the mirror. Sentence 2: He was very aware of his body image. Sentence 3: She put this down to social media and men's magazines. Sentence 4: When she was young, men were less careful with their look. Sentence 5: Although it seemed progressive, she preferred men to just be manly. Choices: a. Shameful. b. Generation gap.

b