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: Fred wanted a phone. Sentence 2: He never had had one before. Sentence 3: So he went and got one. Sentence 4: But when he turned it on it didn't work. Sentence 5: He was duped. Choices: a. Bad phone. b. Prank.

a