求問皮匠and all daxias - 您的鏈接中有段話不甚理解

I-824 Form, Part3

3. Give the following information about the principal beneficiary of the original petition or application.
原受益人的情況
請注意：受益人還是你老爹，就不要寫你的名字了


I am requesting my daughter's following -to- join, Don't understand,受益人是
1.我
2.我老爹
3.我孩子
which one is correct??? Googled a long time, still confusing.

Thanks a lot