I NEED HELP ASAP PLEASE! Will mark brainliest if answer is right! Which is the best inference about Lincoln’s interpretation of his primary presidential duty?

A.
to create a new form of republican government for the Union states
B.
to follow Washington’s directive to be political cement for the nation
C.
to sacrifice constitutional liberty for the good of the nation
D.
to preserve the country’s founding principle of a nation of states