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: Tim has a biology test tomorrow. Sentence 2: He also has an English test. Sentence 3: He decided to skip studying for English. Sentence 4: He failed his English test. Sentence 5: However, he passed his biology test. Choices: a. Biology test. b. mail.

a