What happened after four candidates ran for president in 1860

United States presidential election of 1860, American presidential election held on Nov. 6, 1860, in which Republican Abraham Lincoln defeated Southern Democrat John C. Breckinridge, Democrat Stephen A. Douglas, and Constitutional Union candidate John Bell.

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

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration