I learned to listen for the sound the chain makes when it 's too loose . Eventually I felt confident enough to drive down to Oriental Bay to go for a ride . The homework was an hour to an hour and a half of hills . Under the circumstances I decided to ignore the hill part of the homework .
According to the above context, choose the best option to answer the following question.
Question: What may be the reason why they learned to listen for a sound ?
Options:
- Because they read it online .
 - Because their bike has been broken for a while .
 - Because they have really good hearing .
 - None of the above choices .


Because their bike has been broken for a while .