There are TWO kinds of citizenship:
Conferred at birth - natural born
Conferred after birth - naturalized
No need to confuse the issue.
No I’m sorry you are the one confused.
Find another book. Three are not enough.
The damned ILLEGAL ALIEN ANCHOR babies are NOT NBCs.
Neither are children born to foreign diplomats here, at the time of their births, nor foreigners' children born here, when their parent is assigned to work at the UN !