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: Rosa was very upset that she didn't know how to cook. Sentence 2: Her single mother worked all the time and hadn't taught her how. Sentence 3: Rosa decided to ask her friend Alyssa's mom to teach her. Sentence 4: Alyssa's mom was happy to help and they began lessons right away. Sentence 5: Rosa's mom was really surprised when she came home and dinner was made! Choices: a. Allergic. b. Rosa's Big Surprise.

b