I-765 question

hey guys, I'm confused in question 11 of the employment authorization application?
11.Have you ever before applied for employment authorization from USCIS?
YES
Which Office?
Nebraska Service Center
Dates(s)
????
Results
Granted

My question is, under Date(s), do I put my Notice of Action's Receipt Date or Valid From date. Thanks guys

now that I see the Notice of Action again, I see a NOTICE DATE as well