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: A team entered a competition. Sentence 2: They trained to win the obstacles. Sentence 3: The day of the race arrived. Sentence 4: They got pumped for it. Sentence 5: They won the race! Choices: a. Everyone Has Fun Looking at 1970s Snapshots. b. Obstacles.
b