Answer:
Among the options given on the question the correct answer is option C.
They were written by Thomas Jefferson and James Madison.
Explanation: The Kentucky and Virginia resolutions were drafted on 1798 and 1799 by the legislatures of Kentucky and Virginia opposing the Alien and Sedition act of Federal Government. The resolution argued that states have the power to announce any law of federal government as unconstitutional which are not according to the constitution. Later the principles of the resolution came to know as the Principles of 98. The Kentucky resolution argued that individual state has the power to declare any central as unconstitutional and void in the state. The Virginia resolution discussed that that the states have a right to "interpose" to prevent harm caused by unconstitutional laws
However, both of the resolution were written by Thomas Jefferson and James Madison in 1798 secretly.
Therefore, it can be said that the option C is true about Kentucky and Virginia resolution.