Read the following context and choose the best option to answer the question.
Context: My grandfather was a real trader . Yeah , typical Dutch , haha . He knew how to make money in almost anything . One of the things he would do , he would stop by the side of the road , pick up empty soda and beer bottles , return them to the store and collect the deposit . Every now and then , he would go to the dump and spent half a day , walking around on it , looking at what people had thrown out . Anything he thought might still have some value , he would bring home , polish it up , or restore it and hold a barn - sale .
Question: How was the grandfather able to cash in empty cans ?
Options: 
- He gave them out to people .
 - He took them to a depositing center .
 - He sold them to others .
 - He polished the cans first .


He took them to a depositing center .