If one is a citizen of the United States of America, and one wants to proclaim one's nationality, particularly to a citizen of another country, which is the correct declaration?

a) I am American
b) I am from the States
c) I am from the U.S.(A)
d) I am from The Americas
e) I am from the Western Hemisphere
f) I live south of Canada and north of Mexico
g) any of the above
h) none of the above