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.
        
             
        
        
        
C is not the right answer as it does not even include name of the artist, Di Vinci. The correct answer is A. Leonardo Di Vinci is best known for his fantastic paintings and sculptures but he was also an inventor and invented the ariel screw, the parachute, and several war machines.
 
        
             
        
        
        
I believe “satisfyingly” would work, the definition of satisfyingly is: “in a way that gives fulfillment or the pleasure associated with this.” The definition of “proudly” is: “with a feeling of deep pleasure or satisfaction in one's own achievements, qualities, or possessions or those of someone with whom one is closely associated.” The word satisfy is used in the definition so I believe they are similar!
        
             
        
        
        
first one is (MAIN CLAUSE)
second one is (SUBORDINATING CLAUSE)
but i am not sure about the 3rd one