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: Arni opened a restaurant with his son. Sentence 2: He taught his son to make the best pasta in the state. Sentence 3: They advertised all over for their grand opening. Sentence 4: Hundreds of people ate there that day. Sentence 5: Their restaurant will be open for years. Choices: a. Arni's Restaurant. b. First Day.

a