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: Irene is an extreme right winger. Sentence 2: Her daughter Pattie is a Democrat. Sentence 3: Right now they are fighting over politics. Sentence 4: Irene is mad that Pattie won't vote Republican. Sentence 5: They got into a big argument 1 month ago and haven't talked since. Choices: a. addiction. b. Fighting over politics.

b