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: Nancy's parents asked her come to the family dinner. Sentence 2: Since she had a big test tomorrow, she refused. Sentence 3: Several hours later, her family came over to the house. Sentence 4: They were happy and and couldn't stop talking. Sentence 5: Nancy became mad and went in her bedroom. Choices: a. Hard Math. b. Left Out.

b