The correct answer is D. Both compare the object to an event in history.
Explanation
Relative dating is a method of dating and classifying the age or presence between two or more items. This method is based on three principles, that of superposition, continuity, and paleontological identity. On the other hand, radioactive dating is another dating method that uses the principle of decay of radioactive isotopes to know the age of one element concerning another. These two methods are generally used in paleontology, geology, and other sciences that study the antiquity of different objects, materials, or elements and need to date broad time spectra. Therefore, the correct answer is D. Both compare the object to an event in history.