C.
repertoire
a "collection," so to speak
The answer is
“A. The injustice of discrimination.”
The reason for this is that the dog is at old age, stinky and is about to die. And in the book Carlson believes his useless for that reason, and the dog was discriminated for it. The author expressed how society treats (or discriminate) people of old age, person with disabilities and minorities.
Foreshadowing and metaphor because it foreshadows what will happen next (how they both got attacked by bob)
You use quotation marks, if in writing. If you're saying the word out loud, make quotation marks with your pointer and middle fingers on both hands.
