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 found it hard to keep a girlfriend. Sentence 2: He kept changing women every two months. Sentence 3: He told his friends it was always the woman's fault. Sentence 4: But after sixty women, his friends told him to look at himself. Sentence 5: Jack refused to take the blame and continued to change women. Choices: a. New Apartment. b. Who is to blame?.

b