To become a citizen of the united states, you must
a. have lived in the united states for at least six months.
b. pass an english and government test.
c. be at least 21 years old. (x)
d. file a request form in a federal court. d- was wrong

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.