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: Tom was bragging about his summer vacation to his friends. Sentence 2: He talked about how he spent an adventurous month in Brazil. Sentence 3: However, Tom didn't actually go to Brazil. Sentence 4: He just wanted to impress his friends. Sentence 5: Embarrassingly, Tom couldn't name any Brazilian cities when asked. Choices: a. Peanut Butter and Jelly Sandwiches. b. Vacation.

b