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: Thomas was a steamboat captain. Sentence 2: He'd find fish anywhere, just to prove his metal. Sentence 3: One day he was chasing a school of marlin right into a storm. Sentence 4: Thomas' boat struggled against the storm. Sentence 5: Thomas' prevailed, and brought home his best catch ever. Choices: a. The Fishing Captain. b. First Day.

a