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: Theo was beyond excited. Sentence 2: He had just arrived in Australia. Sentence 3: For years he had dreamed of this trip. Sentence 4: He traveled all over the country. Sentence 5: He was so happy on his trip to Australia. Choices: a. A Trip to Australia. b. Becoming a Doctor.

a