Yesterday I did n't walk or otherwise exercise . Today , I was hoping to make up for it by walking 6 km . I think I did about that distance , but it 's hard to tell from Google maps .
According to the above context, choose the best option to answer the following question.
Question: Why is the person attempting to make up for not exercising on the day prior ?
Options:
- None of the above choices .
 - They are fulfilling a requirement for an online gym class and must exercise a given number of hours
 - They are required to walk to work as they can not afford to take a taxi and they missed the day before
 - They want to get into better shape and must get a certain amount of exercise to do this


They want to get into better shape and must get a certain amount of exercise to do this