You will be given a definition of a task first, then some input of the task.
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: Donald dreamed of becoming a star. Sentence 2: He would watch movies and imagine he was the leading man. Sentence 3: He quit his job in insurance and moved to LA. Sentence 4: One day, whilst waiting tables, he served a well-known casting agent. Sentence 5: The agent took a liking to Donald and cast him in his next movie. Choices: a. Success. b. Choir.
Output:
a