The election of president lincoln caused north carolina to secede from the union.
a. true
b. false

The answer is true.  South Carolina as well as majority of the Southern states was dependent on slavery for their plantations and other activities when Lincoln was elected, they were against because they were afraid he would abolish slavery. They decided to secede rather than accept as President.  The Civil War followed soon after.

This would be a true statement

The correct answer is "the protesters were attacked by chinese troops and many were killed or arrested."