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: Kelly was craving chocolate milk, but she had no powder or syrup. Sentence 2: She decided to improvise with a packet of hot cocoa. Sentence 3: But, stir as she might, she couldn't get the yucky powder to mix! Sentence 4: It was a foul-tasting concoction. Sentence 5: At least, Kelly reasoned, you never know until you try! Choices: a. Mother. b. Cocoa.
b