Definition: In this task you are given a story and a question regarding that story. You must judge whether the question is answerable based on the info given to you. Label the instances as "Answerable" or "Not Answerable" based on your judgment. the story and the question are separated by a new line character.
Input: Jack had been struggling with his math homework. He thought that if he tried hard enough that his grade would improve. Jack got his report card and his grade was a D. Jack and his mother discussed his grade and Jack agreed to get a tutor. The tutor worked with Jack all quarter and his grade improved to a B.
Why did He think that if he tried hard enough that his grade would improve?

Not Answerable