She remained with them until she was four years old , when a run in with an enemy ship caused her parents to bring her ashore to live with her paternal grandparents in Australia . When she was seven , her parents returned and brought her to Long Beach to live with her maternal grandparents . Though they were far apart , her parents were faithful to visit each month and take her on long trips during the summer .
According to the above context, choose the best option to answer the following question.
Question: Why did they have to stay with their grandparents ?
Options:
- They could n't travel due to illness .
 - Their parents were n't responsible .
 - Their parents were traveling .
 - None of the above choices .


Their parents were traveling .