I believe the answer is: C. Death
In western society, footman refers to the people who had the duty to admitting visitors to a certain place.
<span><em>I have seen the moment of my greatness flicker, . .. </em>could be interpreted into the fact that the writer has already past his prime age.
So, eternal footman could be interpreted as death that await the writer before he leave the realm of the living.</span>
The major principle protect your right to be protected by law. For example, no one can assault you and get away.
Mummificatiom was the process into how a pharaoh was buried for death. They took out his organs and put then into some sort of vases which they then buried with him and his treasures or wealth so he can use them in the "afterlife". They placed him in a sarcophagus all wrapped in a fabric, not sure if it was linen though.
But if you want a more descriptive description then go to Google, those were just in my own words and what I remeber.