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: Jack had a smartphone and was also very generous. Sentence 2: One day, Jack received a message on his phone. Sentence 3: The message said to make a donation by texting a number. Sentence 4: Jack made a $10 donation, but on his bill $500 was charged. Sentence 5: Jack decided to make sure not to donate without research. Choices: a. The Comedian. b. Donation.

b