Which of the following most clearly expresses Lincoln's views on slavery when he was elected?

A) The states had a right to regulate slavery but Congress did not.
B) He was an abolitionist.
C) Existing states had a constitutional right to retain slavery.
D) Congress had the authority to regulate slavery.

Abolitionist

An individual or movement advocating for the end of slavery and the emancipation of slaves.

Constitutional Right

A right granted and guaranteed by a country's constitution, protecting citizens' freedoms and legal entitlements.

Regulate Slavery

The act of creating and enforcing laws or policies to control the practice of slavery, its conditions, and its economic aspects.