Chi Hang and anh Do were the children of my uncle Duc 's . The only paternal grandchildren of my paternal grandparents that were born before me . When I started to know things , they 'd already left for Canada , so I actually did n't have to compete for love and attention . I enjoyed being the only " jewel in the eye " of grandpa for 5 straight years ( until my sister was born ) .
According to the above context, choose the best option to answer the following question.
Question: Why did the narrator 's grandpa devote so much attention to them ?
Options:
- They were the only grandchild who was in China .
 - None of the above choices .
 - They were the only grandchild near grand pa .
 - They were the only grandchild in the family .


They were the only grandchild near grand pa .