The idea of equal protection under the law is an example of Rome's political legacy.
The "legacy of the Roman Empire" refers to the set of cultural values, religious beliefs, as well as technological and other achievements of Ancient Rome which were passed on after the demise of the empire itself and continued to shape other civilizations, a process which continues to this day.
The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.