Explain which of the informal qualifications for presidency is the most important in helping a candidate to be elected

answer; ///i believe that the correct answer is (b); ///the candidate must be a native born american citzen;

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.

c) he felt the constitution clearly gave states this right.