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: Ken had been putting in long hours at work. Sentence 2: His boss had asked him to work on a special project. Sentence 3: Ken was honored to work on the project. Sentence 4: It was completed on time. Sentence 5: Ken was praised for his hard work and dedication. Choices: a. Working hard. b. The Ant Problem.

a