Select the correct answer. What kind of evidence is given in the excerpt from Lincoln’s First Inaugural Address?

Again, if the United States be not a government proper, but an association of States in the nature of contract merely, can it, as a contract, be peaceably unmade by less than all the parties who made it? One party to a contract may violate it—break it, so to speak; but does it not require all to lawfully rescind it?

A.
example
B.
statistics
C.
logical reasoning
D.
expert opinion