The presidential election of 1860 revealed that:
a. if united the north could defeat the south in national elections
b. the split of the democratic party, north and south, was the formula needed for the
republican party to win a national election
c. slavery was not as popular as it had been in the past as most people voted for the anti-slavery party of lincoln
d. the democratic party needed to alter its platform to fit the need of southerners in
regards to slavery