Plain and simple, it means not having to die. The fear and the enigma of death is one of the most ancient and persisting human obsessions, that has been the subject of countless mythological stories and written pieces of literature.
In classic Greek and Roman literature, gods were immortal by definition. But there is also an interesting story about Cumaean Sybil, a priestess who was pursued by Apollo. When he promised to grant her one wish if she would yield to him, she asked to live eternally. But then she changed her mind and refused Apollo, who left her to decay alive, as she didn't ask for eternal youth.
In contemporary literature, there are numerous examples of fascination with the so-called "undead" - vampires, aliens, and other uncanny creatures.
The dagger is given "human qualities," therefore this would be Personification.
Do you have a picture or a file I can look at or..?
A pronoun can substitute a noun or a noun phrase. Among the options above only C. him and D. They are pronouns: stories is a noun and many could be a pronoun if is was standing alone, but here it is a part of a noun phrase.
C. him is singular, so the right answer is D. They
It takes 1407.5 hours to spin once on its axis