I believe loyalty would be the correct answer!
Answer: doctors needed no legal documentation to prove they were doctors. And doctors used to perform medical procedure on stolen dead bodies. Those days fraud was on its peak in medical field.
Explanation:
<u> D. Men are only human and fallible themselves and cannot claim their opinions to be divine and infallible.</u>
The excerpt asserts rulers' nature (both civilian and ecclesiastical): they are fallible, imperfect, and uninspired men. Still, over the centuries, they have established and imposed their opinions on others as reliable, as the only truth. But this is wrong, the divine, and the truth can not depend on men's opinions or beliefs about what they think it's right. In conclusion, men with their fallible and imperfect nature, cannot claim their opinions to be divine and infallible.