Actually "The American" is the super secret, mega genius answer.

I am just wondering if I am still smart if I had the correct answer but I enteret it in wrong? I will use one that is not a choice..instead of saying Ameriacan I said America
"*Note: Do not use the word "The" in your answer..Simply enter the
country."
But, when you enter the country it says it's wrong, only the nationality works so, i guess you were just too "smart" for your own good
P.S. I like the irony of someone creating a page with a "how smart are you quiz" and then mixing up country and nationality
