Context: By the time that the young bear grew to full adulthood , his parents and siblings had moved on to better hunting and fishing grounds . Yet , alas , the young bear still had an attachment to this place that he called home - as it was really the only home that he had ever known . Years went by .
Question: Why did the young bear 's family move on to better hunting and fishing grounds ?
Option 0: None of the above choices .
Option 1: The place they all lived never ran out of prey as time passed .
Option 2: The place they all lived had a lot of prey for them to eat .
Option 3: The place they all lived ran out of prey as time passed .
Answer: 3