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: Kris had always been a good swimmer. Sentence 2: He joined a club to improve his skills. Sentence 3: They invited him to swim in a competition just after joining. Sentence 4: Kris was very nervous about this as he had never swam a race. Sentence 5: He came in second and was very proud of his achievement. Choices: a. The Swimming Competition. b. Rugby League.

a