N400 - Citizenship kid under 21

[He and I 66]

Hello guys,

I have a quick question for you, hope you could help us to figure out, as we haven't found the answer yet.

I arrived in the US with a K1 visa, with my daughter, 16 yo by this time, as a K2 visa holder. After the wedding we applied for the conditional green card. Received it by the end of 2020. Last year we applied for the 10 yrs GC (same application as she received her conditional gc under my application).
My question is as I am ready to apply for citizenship, with the 3 yrs rule, can she also apply at the same time? She will turn 20 by the eoy. Or does she have to wait for the 5yrs rule?

Thank you in advance!

[Mike E 11,727]

44 minutes ago, He and I said:

apply for citizenship, with the 3 yrs rule, can she also apply at the same time?

no

44 minutes ago, He and I said:

She will turn 20 by the eoy. Or does she have to wait for the 5yrs rule?

She waits 5 years unless she marries a U.S. citizen 

[He and I 66]

1 minute ago, Mike E said:

no

She waits 5 years unless she marries a U.S. citizen 

Thank you Mike for your quick response! That's what we were leaning for but always nice to get confirmation.