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: Kim's son was forever losing his eyeglasses. Sentence 2: She had tried making him put them in their case. Sentence 3: She bought straps to keep them on his neck. Sentence 4: He was still losing the glasses though. Sentence 5: Kim finally bought a couple extra pairs so she had some waiting. Choices: a. Be his valentine.. b. Kim's Son's Glasses.

b