The correct answer is B) We are all Republicans, We are all Federalists.
The quote from Jefferson’s Inaugural Address that cites his attempt to reunite a politically split nation is "We are all Republicans, We are all Federalists."
We are referring to the first Inaugural Address of Thomas Jefferson, delivered on March 8, 1801, when the two most important political parties in the United States were the Federalists and the Republicans.
The excerpt of the speech where we can see how he wanted to reunite the divided country is: "But every difference of opinion is not a difference of principle. We have called by different names brethren of the same principle. We are all Republicans, we are all Federalists. If there be any among us who would wish to dissolve this Union or to change its republican form, let them stand undisturbed as monuments of the safety with which error of opinion may be tolerated where reason is left free to combat it." That was his call to express that no matter what party did American people belong to, in the end, they all were Americans.