Minor Child of EB-1A Petitioner, DS-260 from Petitioner Section SELF or OTHER(FATHER)

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I am a LPR (Got GC in EB-1A self petition), filing Green Card for my minor child, I-824 (Follow to Join) is approved and filling online DS-260 form for my child. I have the following question.

1) Section -Petitioner Information
In my child's DS-260 application, option for petitioner are EMPLOYER, PROSPECTIVE EMPLOYER, SELF, OR OTHER.

Should I select SELF since my EB-1A was self petition
OR
Should I select OTHER and Explain Other: As THE PETITIONER IS MY FATHER