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: Delaney and her sister were adopted when they were little. Sentence 2: Their mother was very loving and doting. Sentence 3: Delaney's mom developed cancer when Delaney was in high school. Sentence 4: She fought hard, but couldn't beat the cancer. Sentence 5: Her mother died and left them with her dad to raise. Choices: a. Mom's Death. b. Rocky Relationship.

a