The word <em>whom </em>in this sentence is used as 2. object of a preposition.
Since it can be found after a preposition <em>for, </em>it is object of a preposition.
C. Your youthful beauty will not fade
A predator is something that hunts prey (the prey being meat), and a carnivore is something that eats meat. So, their similarities are that they both consume meat. :D I hope I helped!
