United States of America. Not the whole 3 continents.
What 3 continents?
I assume he meant regions with the third region being "Central America".
North, South, and In.
This is weird, not just because you forgot how many American continents there are, but because when people get bothered about calling the USA "America," it usually turns out to be because they consider America to be a single continent, north and south together, whose name the USA is usurping. If you prefer dividing it into North America and South America, then there's no confusion with plain America.
In other words, you should have said "Not the whole one continent."
North America is also Canada
Never said it wasn't.
You're right, I misread your comment (I thought that you were saying that using "North America" makes it obvious that this is the USA - which you did not). Sorry (as they say in Canada :))