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: When I walked into my house I noticed it smelled really bad. Sentence 2: The first thing I did was take the garbage out but it was still there. Sentence 3: I had no clue where this strange scent was coming from. Sentence 4: A newly bought bag of potatoes was causing the problem. Sentence 5: I took them outside and sprayed some air freshener and it was gone. Choices: a. The smell.. b. Tim's Day Off.

a