In option 1, the statement is incorrect because an Aadhaar card is not a proof of citizenship or domicile. It is a unique identification number issued by the Indian government to residents of India, regardless of their citizenship. It is just for identity, not for proving citizenship.
Option 2 is also incorrect. The Aadhaar number, once issued, can be deactivated by the Unique Identification Authority of India (UIDAI) under certain circumstances. For example, if a person does not use his/her Aadhaar for three consecutive years it may be deactivated. Also, in cases of fraudulent activity, Aadhaar can be deactivated.
Hence, the correct answer is option 4 i.e., "Neither 1 nor 2" because both statements are incorrect.