During the civil war, some accused lincoln of ignoring the constitution when he
a.
restricted free speech
b.
ordered a naval blockade of the south
c.
rejected the legality of secession
d.
chose a democratic running mate (andrew johnson) in 1864

The correct answer is option C. "rejected the legality of secession".

Explanation:

In 1860, according to the United Constitution every state had the right to leave the Union, in what is known as secession. When Abraham Lincoln took the presidency seven southern states tried to seceded the Union under this law. However, Lincoln rejected the legality of secession with the premise that a government that allows secession will result into anarchy.

some american cities felt workers were being oppressed by business monopolies