On Form N600 question 14B which passport information should I provide?

[Rahul70]

My son (17 now) entered the country from India as an infant on a passport which has expired and he has renewed and gotten different passports over the last few years. He is now a Green Card Holder. We are applying for his citizenship Which passport number/information should I provide - the first one that he entered on or the most recent one that is currently in his possession and is active. Any help is greatly appreciated.

[policy_wonk]

the most recent one that is currently in his possession and is active.