The statement which is true of The Federalist Papers is that D. they were written to gain support for the Constitution. A is incorrect because they were published under the pseudonym Publius. B is incorrect because they didn't avoid this topic, but rather focused on getting the people to vote for the Constitution to be adopted. C is incorrect because the authors were Alexander Hamilton, James Madison, and John Jay, and the purpose was to get the people to see the advantages of the Constitution.